510 lines
13 KiB
Go
510 lines
13 KiB
Go
// Copyright 2010-2012 The W32 Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package w32
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import (
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"syscall"
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"unsafe"
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)
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var (
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modgdi32 = syscall.NewLazyDLL("gdi32.dll")
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procGetDeviceCaps = modgdi32.NewProc("GetDeviceCaps")
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procDeleteObject = modgdi32.NewProc("DeleteObject")
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procCreateFontIndirect = modgdi32.NewProc("CreateFontIndirectW")
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procAbortDoc = modgdi32.NewProc("AbortDoc")
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procBitBlt = modgdi32.NewProc("BitBlt")
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procCloseEnhMetaFile = modgdi32.NewProc("CloseEnhMetaFile")
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procCopyEnhMetaFile = modgdi32.NewProc("CopyEnhMetaFileW")
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procCreateBrushIndirect = modgdi32.NewProc("CreateBrushIndirect")
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procCreateCompatibleDC = modgdi32.NewProc("CreateCompatibleDC")
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procCreateDC = modgdi32.NewProc("CreateDCW")
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procCreateDIBSection = modgdi32.NewProc("CreateDIBSection")
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procCreateEnhMetaFile = modgdi32.NewProc("CreateEnhMetaFileW")
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procCreateIC = modgdi32.NewProc("CreateICW")
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procDeleteDC = modgdi32.NewProc("DeleteDC")
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procDeleteEnhMetaFile = modgdi32.NewProc("DeleteEnhMetaFile")
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procEllipse = modgdi32.NewProc("Ellipse")
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procEndDoc = modgdi32.NewProc("EndDoc")
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procEndPage = modgdi32.NewProc("EndPage")
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procExtCreatePen = modgdi32.NewProc("ExtCreatePen")
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procGetEnhMetaFile = modgdi32.NewProc("GetEnhMetaFileW")
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procGetEnhMetaFileHeader = modgdi32.NewProc("GetEnhMetaFileHeader")
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procGetObject = modgdi32.NewProc("GetObjectW")
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procGetStockObject = modgdi32.NewProc("GetStockObject")
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procGetTextExtentExPoint = modgdi32.NewProc("GetTextExtentExPointW")
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procGetTextExtentPoint32 = modgdi32.NewProc("GetTextExtentPoint32W")
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procGetTextMetrics = modgdi32.NewProc("GetTextMetricsW")
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procLineTo = modgdi32.NewProc("LineTo")
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procMoveToEx = modgdi32.NewProc("MoveToEx")
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procPlayEnhMetaFile = modgdi32.NewProc("PlayEnhMetaFile")
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procRectangle = modgdi32.NewProc("Rectangle")
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procResetDC = modgdi32.NewProc("ResetDCW")
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procSelectObject = modgdi32.NewProc("SelectObject")
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procSetBkMode = modgdi32.NewProc("SetBkMode")
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procSetBrushOrgEx = modgdi32.NewProc("SetBrushOrgEx")
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procSetStretchBltMode = modgdi32.NewProc("SetStretchBltMode")
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procSetTextColor = modgdi32.NewProc("SetTextColor")
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procSetBkColor = modgdi32.NewProc("SetBkColor")
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procStartDoc = modgdi32.NewProc("StartDocW")
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procStartPage = modgdi32.NewProc("StartPage")
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procStretchBlt = modgdi32.NewProc("StretchBlt")
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procSetDIBitsToDevice = modgdi32.NewProc("SetDIBitsToDevice")
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procChoosePixelFormat = modgdi32.NewProc("ChoosePixelFormat")
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procDescribePixelFormat = modgdi32.NewProc("DescribePixelFormat")
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procGetEnhMetaFilePixelFormat = modgdi32.NewProc("GetEnhMetaFilePixelFormat")
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procGetPixelFormat = modgdi32.NewProc("GetPixelFormat")
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procSetPixelFormat = modgdi32.NewProc("SetPixelFormat")
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procSwapBuffers = modgdi32.NewProc("SwapBuffers")
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)
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func GetDeviceCaps(hdc HDC, index int) int {
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ret, _, _ := procGetDeviceCaps.Call(
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uintptr(hdc),
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uintptr(index))
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return int(ret)
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}
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func DeleteObject(hObject HGDIOBJ) bool {
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ret, _, _ := procDeleteObject.Call(
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uintptr(hObject))
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return ret != 0
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}
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func CreateFontIndirect(logFont *LOGFONT) HFONT {
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ret, _, _ := procCreateFontIndirect.Call(
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uintptr(unsafe.Pointer(logFont)))
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return HFONT(ret)
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}
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func AbortDoc(hdc HDC) int {
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ret, _, _ := procAbortDoc.Call(
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uintptr(hdc))
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return int(ret)
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}
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func BitBlt(hdcDest HDC, nXDest, nYDest, nWidth, nHeight int, hdcSrc HDC, nXSrc, nYSrc int, dwRop uint) {
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ret, _, _ := procBitBlt.Call(
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uintptr(hdcDest),
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uintptr(nXDest),
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uintptr(nYDest),
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uintptr(nWidth),
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uintptr(nHeight),
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uintptr(hdcSrc),
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uintptr(nXSrc),
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uintptr(nYSrc),
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uintptr(dwRop))
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if ret == 0 {
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panic("BitBlt failed")
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}
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}
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func CloseEnhMetaFile(hdc HDC) HENHMETAFILE {
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ret, _, _ := procCloseEnhMetaFile.Call(
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uintptr(hdc))
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return HENHMETAFILE(ret)
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}
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func CopyEnhMetaFile(hemfSrc HENHMETAFILE, lpszFile *uint16) HENHMETAFILE {
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ret, _, _ := procCopyEnhMetaFile.Call(
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uintptr(hemfSrc),
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uintptr(unsafe.Pointer(lpszFile)))
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return HENHMETAFILE(ret)
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}
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func CreateBrushIndirect(lplb *LOGBRUSH) HBRUSH {
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ret, _, _ := procCreateBrushIndirect.Call(
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uintptr(unsafe.Pointer(lplb)))
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return HBRUSH(ret)
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}
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func CreateCompatibleDC(hdc HDC) HDC {
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ret, _, _ := procCreateCompatibleDC.Call(
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uintptr(hdc))
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if ret == 0 {
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panic("Create compatible DC failed")
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}
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return HDC(ret)
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}
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func CreateDC(lpszDriver, lpszDevice, lpszOutput *uint16, lpInitData *DEVMODE) HDC {
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ret, _, _ := procCreateDC.Call(
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uintptr(unsafe.Pointer(lpszDriver)),
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uintptr(unsafe.Pointer(lpszDevice)),
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uintptr(unsafe.Pointer(lpszOutput)),
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uintptr(unsafe.Pointer(lpInitData)))
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return HDC(ret)
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}
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func CreateDIBSection(hdc HDC, pbmi *BITMAPINFO, iUsage uint, ppvBits *unsafe.Pointer, hSection HANDLE, dwOffset uint) HBITMAP {
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ret, _, _ := procCreateDIBSection.Call(
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uintptr(hdc),
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uintptr(unsafe.Pointer(pbmi)),
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uintptr(iUsage),
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uintptr(unsafe.Pointer(ppvBits)),
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uintptr(hSection),
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uintptr(dwOffset))
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return HBITMAP(ret)
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}
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func CreateEnhMetaFile(hdcRef HDC, lpFilename *uint16, lpRect *RECT, lpDescription *uint16) HDC {
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ret, _, _ := procCreateEnhMetaFile.Call(
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uintptr(hdcRef),
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uintptr(unsafe.Pointer(lpFilename)),
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uintptr(unsafe.Pointer(lpRect)),
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uintptr(unsafe.Pointer(lpDescription)))
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return HDC(ret)
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}
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func CreateIC(lpszDriver, lpszDevice, lpszOutput *uint16, lpdvmInit *DEVMODE) HDC {
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ret, _, _ := procCreateIC.Call(
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uintptr(unsafe.Pointer(lpszDriver)),
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uintptr(unsafe.Pointer(lpszDevice)),
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uintptr(unsafe.Pointer(lpszOutput)),
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uintptr(unsafe.Pointer(lpdvmInit)))
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return HDC(ret)
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}
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func DeleteDC(hdc HDC) bool {
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ret, _, _ := procDeleteDC.Call(
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uintptr(hdc))
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return ret != 0
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}
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func DeleteEnhMetaFile(hemf HENHMETAFILE) bool {
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ret, _, _ := procDeleteEnhMetaFile.Call(
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uintptr(hemf))
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return ret != 0
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}
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func Ellipse(hdc HDC, nLeftRect, nTopRect, nRightRect, nBottomRect int) bool {
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ret, _, _ := procEllipse.Call(
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uintptr(hdc),
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uintptr(nLeftRect),
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uintptr(nTopRect),
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uintptr(nRightRect),
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uintptr(nBottomRect))
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return ret != 0
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}
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func EndDoc(hdc HDC) int {
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ret, _, _ := procEndDoc.Call(
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uintptr(hdc))
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return int(ret)
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}
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func EndPage(hdc HDC) int {
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ret, _, _ := procEndPage.Call(
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uintptr(hdc))
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return int(ret)
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}
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func ExtCreatePen(dwPenStyle, dwWidth uint, lplb *LOGBRUSH, dwStyleCount uint, lpStyle *uint) HPEN {
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ret, _, _ := procExtCreatePen.Call(
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uintptr(dwPenStyle),
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uintptr(dwWidth),
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uintptr(unsafe.Pointer(lplb)),
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uintptr(dwStyleCount),
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uintptr(unsafe.Pointer(lpStyle)))
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return HPEN(ret)
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}
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func GetEnhMetaFile(lpszMetaFile *uint16) HENHMETAFILE {
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ret, _, _ := procGetEnhMetaFile.Call(
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uintptr(unsafe.Pointer(lpszMetaFile)))
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return HENHMETAFILE(ret)
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}
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func GetEnhMetaFileHeader(hemf HENHMETAFILE, cbBuffer uint, lpemh *ENHMETAHEADER) uint {
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ret, _, _ := procGetEnhMetaFileHeader.Call(
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uintptr(hemf),
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uintptr(cbBuffer),
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uintptr(unsafe.Pointer(lpemh)))
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return uint(ret)
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}
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func GetObject(hgdiobj HGDIOBJ, cbBuffer uintptr, lpvObject unsafe.Pointer) int {
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ret, _, _ := procGetObject.Call(
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uintptr(hgdiobj),
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uintptr(cbBuffer),
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uintptr(lpvObject))
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return int(ret)
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}
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func GetStockObject(fnObject int) HGDIOBJ {
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ret, _, _ := procGetDeviceCaps.Call(
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uintptr(fnObject))
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return HGDIOBJ(ret)
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}
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func GetTextExtentExPoint(hdc HDC, lpszStr *uint16, cchString, nMaxExtent int, lpnFit, alpDx *int, lpSize *SIZE) bool {
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ret, _, _ := procGetTextExtentExPoint.Call(
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uintptr(hdc),
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uintptr(unsafe.Pointer(lpszStr)),
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uintptr(cchString),
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uintptr(nMaxExtent),
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uintptr(unsafe.Pointer(lpnFit)),
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uintptr(unsafe.Pointer(alpDx)),
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uintptr(unsafe.Pointer(lpSize)))
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return ret != 0
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}
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func GetTextExtentPoint32(hdc HDC, lpString *uint16, c int, lpSize *SIZE) bool {
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ret, _, _ := procGetTextExtentPoint32.Call(
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uintptr(hdc),
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uintptr(unsafe.Pointer(lpString)),
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uintptr(c),
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uintptr(unsafe.Pointer(lpSize)))
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return ret != 0
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}
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func GetTextMetrics(hdc HDC, lptm *TEXTMETRIC) bool {
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ret, _, _ := procGetTextMetrics.Call(
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uintptr(hdc),
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uintptr(unsafe.Pointer(lptm)))
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return ret != 0
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}
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func LineTo(hdc HDC, nXEnd, nYEnd int) bool {
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ret, _, _ := procLineTo.Call(
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uintptr(hdc),
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uintptr(nXEnd),
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uintptr(nYEnd))
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return ret != 0
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}
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func MoveToEx(hdc HDC, x, y int, lpPoint *POINT) bool {
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ret, _, _ := procMoveToEx.Call(
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uintptr(hdc),
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uintptr(x),
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uintptr(y),
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uintptr(unsafe.Pointer(lpPoint)))
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return ret != 0
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}
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func PlayEnhMetaFile(hdc HDC, hemf HENHMETAFILE, lpRect *RECT) bool {
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ret, _, _ := procPlayEnhMetaFile.Call(
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uintptr(hdc),
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uintptr(hemf),
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uintptr(unsafe.Pointer(lpRect)))
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return ret != 0
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}
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func Rectangle(hdc HDC, nLeftRect, nTopRect, nRightRect, nBottomRect int) bool {
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ret, _, _ := procRectangle.Call(
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uintptr(hdc),
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uintptr(nLeftRect),
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uintptr(nTopRect),
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uintptr(nRightRect),
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uintptr(nBottomRect))
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return ret != 0
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}
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func ResetDC(hdc HDC, lpInitData *DEVMODE) HDC {
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ret, _, _ := procResetDC.Call(
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uintptr(hdc),
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uintptr(unsafe.Pointer(lpInitData)))
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return HDC(ret)
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}
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func SelectObject(hdc HDC, hgdiobj HGDIOBJ) HGDIOBJ {
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ret, _, _ := procSelectObject.Call(
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uintptr(hdc),
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uintptr(hgdiobj))
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if ret == 0 {
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panic("SelectObject failed")
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}
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return HGDIOBJ(ret)
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}
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func SetBkMode(hdc HDC, iBkMode int) int {
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ret, _, _ := procSetBkMode.Call(
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uintptr(hdc),
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uintptr(iBkMode))
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if ret == 0 {
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panic("SetBkMode failed")
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}
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return int(ret)
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}
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func SetBrushOrgEx(hdc HDC, nXOrg, nYOrg int, lppt *POINT) bool {
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ret, _, _ := procSetBrushOrgEx.Call(
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uintptr(hdc),
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uintptr(nXOrg),
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uintptr(nYOrg),
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uintptr(unsafe.Pointer(lppt)))
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return ret != 0
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}
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func SetStretchBltMode(hdc HDC, iStretchMode int) int {
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ret, _, _ := procSetStretchBltMode.Call(
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uintptr(hdc),
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uintptr(iStretchMode))
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return int(ret)
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}
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func SetTextColor(hdc HDC, crColor COLORREF) COLORREF {
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ret, _, _ := procSetTextColor.Call(
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uintptr(hdc),
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uintptr(crColor))
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if ret == CLR_INVALID {
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panic("SetTextColor failed")
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}
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return COLORREF(ret)
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}
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func SetBkColor(hdc HDC, crColor COLORREF) COLORREF {
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ret, _, _ := procSetBkColor.Call(
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uintptr(hdc),
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uintptr(crColor))
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if ret == CLR_INVALID {
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panic("SetBkColor failed")
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}
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return COLORREF(ret)
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}
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func StartDoc(hdc HDC, lpdi *DOCINFO) int {
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ret, _, _ := procStartDoc.Call(
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uintptr(hdc),
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uintptr(unsafe.Pointer(lpdi)))
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return int(ret)
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}
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func StartPage(hdc HDC) int {
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ret, _, _ := procStartPage.Call(
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uintptr(hdc))
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return int(ret)
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}
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func StretchBlt(hdcDest HDC, nXOriginDest, nYOriginDest, nWidthDest, nHeightDest int, hdcSrc HDC, nXOriginSrc, nYOriginSrc, nWidthSrc, nHeightSrc int, dwRop uint) {
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ret, _, _ := procStretchBlt.Call(
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uintptr(hdcDest),
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uintptr(nXOriginDest),
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uintptr(nYOriginDest),
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uintptr(nWidthDest),
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uintptr(nHeightDest),
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uintptr(hdcSrc),
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uintptr(nXOriginSrc),
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uintptr(nYOriginSrc),
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uintptr(nWidthSrc),
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uintptr(nHeightSrc),
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uintptr(dwRop))
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if ret == 0 {
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panic("StretchBlt failed")
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}
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}
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func SetDIBitsToDevice(hdc HDC, xDest, yDest, dwWidth, dwHeight, xSrc, ySrc int, uStartScan, cScanLines uint, lpvBits []byte, lpbmi *BITMAPINFO, fuColorUse uint) int {
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ret, _, _ := procSetDIBitsToDevice.Call(
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uintptr(hdc),
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uintptr(xDest),
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uintptr(yDest),
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uintptr(dwWidth),
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uintptr(dwHeight),
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uintptr(xSrc),
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uintptr(ySrc),
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uintptr(uStartScan),
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uintptr(cScanLines),
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uintptr(unsafe.Pointer(&lpvBits[0])),
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uintptr(unsafe.Pointer(lpbmi)),
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uintptr(fuColorUse))
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return int(ret)
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}
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func ChoosePixelFormat(hdc HDC, pfd *PIXELFORMATDESCRIPTOR) int {
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ret, _, _ := procChoosePixelFormat.Call(
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uintptr(hdc),
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uintptr(unsafe.Pointer(pfd)),
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)
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return int(ret)
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}
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func DescribePixelFormat(hdc HDC, iPixelFormat int, nBytes uint, pfd *PIXELFORMATDESCRIPTOR) int {
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ret, _, _ := procDescribePixelFormat.Call(
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uintptr(hdc),
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uintptr(iPixelFormat),
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uintptr(nBytes),
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uintptr(unsafe.Pointer(pfd)),
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)
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return int(ret)
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}
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func GetEnhMetaFilePixelFormat(hemf HENHMETAFILE, cbBuffer uint32, pfd *PIXELFORMATDESCRIPTOR) uint {
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ret, _, _ := procGetEnhMetaFilePixelFormat.Call(
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uintptr(hemf),
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uintptr(cbBuffer),
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uintptr(unsafe.Pointer(pfd)),
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)
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return uint(ret)
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}
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func GetPixelFormat(hdc HDC) int {
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ret, _, _ := procGetPixelFormat.Call(
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uintptr(hdc),
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)
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return int(ret)
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}
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func SetPixelFormat(hdc HDC, iPixelFormat int, pfd *PIXELFORMATDESCRIPTOR) bool {
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ret, _, _ := procSetPixelFormat.Call(
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uintptr(hdc),
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uintptr(iPixelFormat),
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uintptr(unsafe.Pointer(pfd)),
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)
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return ret == TRUE
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}
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func SwapBuffers(hdc HDC) bool {
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ret, _, _ := procSwapBuffers.Call(uintptr(hdc))
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return ret == TRUE
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}
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