gdi

package

v1.0.3 Latest Latest Go to latest Published: Sep 25, 2023 License: MIT Imports: 6 Imported by: 0

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Repository

github.com/FxStar/winapi

Links

Open Source Insights

Documentation ¶

Index ¶

Constants
Variables
func BitBlt(hdc HDC, nXDest, nYDest, nWidth, nHeight int, hdcSrc HDC, nXSrc, nYSrc int, ...) bool
func CreateCompatibleBitmap(hdc HDC, width, height uintptr) (hbitmap HANDLE)
func CreateCompatibleDC(hwnd HWND) (hdc HDC)
func CreateDIBSection(hdc HDC, pbmi *BITMAPINFO, iUsage uint, ppvBits uintptr, hSection uint32, ...) (HANDLE, error)
func DeleteObject(hgdiobj HANDLE) HANDLE
func GetBValue(rgb COLORREF) BYTE
func GetGValue(rgb COLORREF) BYTE
func GetObjectA(hgdiobj HANDLE, cbBuffer uintptr, object uintptr) (size uint32)
func GetObjectW(hgdiobj HANDLE, cbBuffer uintptr, object uintptr) (size uint32)
func GetRValue(rgb COLORREF) BYTE
func LoadBitmapFromMemory(img image.Image) (HBITMAP, int, int, error)
func RGB(r, g, b BYTE) COLORREF
func SelectObject(hdc HDC, hgdiobj HANDLE) HDC
func SetDIBits(hdc HDC, hbm HBITMAP, start, cLines int32, pixels []byte, pbmi *BITMAPINFO, ...) error
func StretchBlt(hdc HDC, nXDest, nYDest, nWidth, nHeight int, hdcSrc HDC, ...) bool
type BITMAP
type BITMAPINFO
type BITMAPINFOHEADER
type DIBBITMAPINFO
type LOGFONTA
type LOGFONTW
type METAHEADER
type RGBQUAD

Constants ¶

View Source

const (
	BI_RGB       = 0
	BI_BITFIELDS = 3

	DIB_PAL_COLORS = 1
	DIB_RGB_COLORS = 0

	BLACKNESS   = 0x42
	DSTINVERT   = 0x550009
	MERGECOPY   = 0xC000CA
	MERGEPAINT  = 0xBB0226
	NOTSRCCOPY  = 0x330008
	NOTSRCERASE = 0x1100A6
	PATCOPY     = 0xF00021
	PATINVERT   = 0x5A0049
	PATPAINT    = 0xFB0A09
	SRCAND      = 0x8800C6
	SRCCOPY     = 0xCC0020
	SRCERASE    = 0x440328
	SRCINVERT   = 0x660046
	SRCPAINT    = 0xEE0086
	WHITENESS   = 0xFF0062
)

View Source

const LF_FACESIZE = 32

Variables ¶

View Source

var LOGFONTA_SIZE = UINT(unsafe.Sizeof(LOGFONTA{}))

View Source

var LOGFONTW_SIZE = UINT(unsafe.Sizeof(LOGFONTW{}))

View Source

var METAHEADER_SIZE = UINT(unsafe.Sizeof(METAHEADER{}))

Functions ¶

func BitBlt ¶

func BitBlt(hdc HDC, nXDest, nYDest, nWidth, nHeight int, hdcSrc HDC, nXSrc, nYSrc int, dwRop uint32) bool

func CreateCompatibleBitmap ¶

func CreateCompatibleBitmap(hdc HDC, width, height uintptr) (hbitmap HANDLE)

func CreateCompatibleDC ¶

func CreateCompatibleDC(hwnd HWND) (hdc HDC)

func CreateDIBSection ¶

func CreateDIBSection(hdc HDC, pbmi *BITMAPINFO, iUsage uint, ppvBits uintptr, hSection uint32, dwOffset uint32) (HANDLE, error)

func DeleteObject ¶

func DeleteObject(hgdiobj HANDLE) HANDLE

func GetBValue ¶

func GetBValue(rgb COLORREF) BYTE

func GetGValue ¶

func GetGValue(rgb COLORREF) BYTE

func GetObjectA ¶

func GetObjectA(hgdiobj HANDLE, cbBuffer uintptr, object uintptr) (size uint32)

func GetObjectW ¶

func GetObjectW(hgdiobj HANDLE, cbBuffer uintptr, object uintptr) (size uint32)

func GetRValue ¶

func GetRValue(rgb COLORREF) BYTE

func LoadBitmapFromMemory ¶

func LoadBitmapFromMemory(img image.Image) (HBITMAP, int, int, error)

reference: https://stackoverflow.com/questions/2886831/win32-c-c-load-image-from-memory-buffer/2901465#2901465

func RGB ¶

func RGB(r, g, b BYTE) COLORREF

func SelectObject ¶

func SelectObject(hdc HDC, hgdiobj HANDLE) HDC

func SetDIBits ¶

func SetDIBits(hdc HDC, hbm HBITMAP, start, cLines int32, pixels []byte, pbmi *BITMAPINFO, colorUse uint) error

func StretchBlt ¶

func StretchBlt(hdc HDC, nXDest, nYDest, nWidth, nHeight int, hdcSrc HDC, nXSrc, nYSrc, wSrc, hSrc int, dwRop uint32) bool

Types ¶

type BITMAP ¶

type BITMAP struct {
	Type       int32
	Width      int32
	Height     int32
	WidthBytes int32
	Planes     uint16
	BitsPixel  uint16
	Bits       *byte
}

type BITMAPINFO ¶

type BITMAPINFO struct {
	Header BITMAPINFOHEADER
	Colors [1]RGBQUAD
}

type BITMAPINFOHEADER ¶

type BITMAPINFOHEADER struct {
	Size          uint32
	Width         int32
	Height        int32
	Planes        uint16
	BitCount      uint16
	Compression   uint32
	SizeImage     uint32
	XPelsPerMeter int32
	YPelsPerMeter int32
	ClrUsed       uint32
	ClrImportant  uint32
}

type DIBBITMAPINFO ¶

type DIBBITMAPINFO struct {
	BITMAPINFO
	// contains filtered or unexported fields
}

type LOGFONTA ¶

type LOGFONTA struct {
	LfHeight         LONG
	LfWidth          LONG
	LfEscapement     LONG
	LfOrientation    LONG
	LfWeight         LONG
	LfItalic         BYTE
	LfUnderline      BYTE
	LfStrikeOut      BYTE
	LfCharSet        BYTE
	LfOutPrecision   BYTE
	LfClipPrecision  BYTE
	LfQuality        BYTE
	LfPitchAndFamily BYTE
	LfFaceName       [LF_FACESIZE]CHAR
}

type LOGFONTW ¶

type LOGFONTW struct {
	LfEscapement     LONG
	LfOrientation    LONG
	LfWeight         LONG
	LfItalic         BYTE
	LfUnderline      BYTE
	LfStrikeOut      BYTE
	LfCharSet        BYTE
	LfOutPrecision   BYTE
	LfClipPrecision  BYTE
	LfQuality        BYTE
	LfPitchAndFamily BYTE
	LfFaceName       [LF_FACESIZE]WCHAR
	// contains filtered or unexported fields
}

type METAHEADER ¶

type METAHEADER struct {
	// contains filtered or unexported fields
}

type RGBQUAD ¶

type RGBQUAD struct {
	Blue     byte
	Green    byte
	Red      byte
	Reserved byte
}

Source Files ¶

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