Public Type palVersion As Integer 版本你试一试 &h300 palNumEntries As Integer 为颜色数 palPalEntry(255) As PALETTEENTRY 255是颜色数 End TypePublic Type PALETTEENTRY peRed As Byte peGreen As Byte peBlue As Byte peFlags As Byte End Type用 copymemery 复制调色板数据到 LOGPALETTE.palPalEntry() createoalette() 建立句柄 然后 selectpalette 再试一试
是否是用SetDIBitsToDevice把数组直接写到dc里面,可以绕开bitmap了?
你首先将调色板数据和图像数据分开。Private Type RGBQUAD rgbBlue As Byte rgbGreen As Byte rgbRed As Byte rgbReserved As Byte End Type Private Type BITMAPINFOHEADER '40 bytes biSize As Long biWidth As Long biHeight As Long biPlanes As Integer biBitCount As Integer biCompression As Long biSizeImage As Long biXPelsPerMeter As Long biYPelsPerMeter As Long biClrUsed As Long biClrImportant As Long End Type Private Type BITMAPINFO_1BPP bmiHeader As BITMAPINFOHEADER bmiColors(0 To 1) As RGBQUAD End Type Private Type BITMAPINFO_4BPP bmiHeader As BITMAPINFOHEADER bmiColors(0 To 15) As RGBQUAD End Type Private Type BITMAPINFO_8BPP bmiHeader As BITMAPINFOHEADER bmiColors(0 To 255) As RGBQUAD End Type Private Type BITMAPINFO_ABOVE8 bmiHeader As BITMAPINFOHEADER End TypePrivate Const DIB_PAL_COLORS = 1 ' color table in palette indices Private Const DIB_PAL_INDICES = 2 ' No color table indices into surf palette Private Const DIB_PAL_LOGINDICES = 4 ' No color table indices into DC palette Private Const DIB_PAL_PHYSINDICES = 2 ' No color table indices into surf palette Private Const DIB_RGB_COLORS = 0 ' color table in RGBsPrivate Declare Function GetDIBits Lib "gdi32" (ByVal hdc As Long, ByVal hBitmap As Long, ByVal nStartScan As Long, ByVal nNumScans As Long, lpBits As Any, lpBI As Any, ByVal wUsage As Long) As Long Private Declare Function SetDIBits Lib "gdi32" (ByVal hdc As Long, ByVal hBitmap As Long, ByVal nStartScan As Long, ByVal nNumScans As Long, lpBits As Any, lpBI As BITMAPINFO, ByVal wUsage As Long) As Long Private Sub Command1_Click() On Error Resume Next Dim tBI As BITMAPINFO_8BPP Dim Bit() As Byte, lSize1 As Long With tBI.bmiHeader .biSize = Len(tBI.bmiHeader) .biWidth = 图片宽 .biHeight = 图片高 .biPlanes = 1 .biBitCount = 8 .biCompression = BI_RGB End With
'调色数据 For i = 0 To 255 tBI.bmiColors(i).rgbRed = r tBI.bmiColors(i).rgbGreen = g tBI.bmiColors(i).rgbBlue = b Next
Dim BFH As BITMAPFILEHEADER Dim BIH As BITMAPINFOHEADER Dim BMPBits() As Byte Dim FN As Long Dim picTmp As Long, h As Long Dim BI As BITMAPINFOFN = FreeFile Open sFileName For Binary As #FN Get #FN, , BFH Get #FN, , BI.bmiHeader ReDim BMPBits(BI.bmiHeader.biWidth * BI.bmiHeader.biHeight) Get #FN, , BI.bmiColors() Seek #FN, 1078 Get #FN, , BMPBits() Close #FNpicTmp = CreateDIBSection(GetDC(0), BI, DIB_PAL_COLORS, ByVal 0&, ByVal 0&, ByVal 0&)h = CreateCompatibleDC(GetDC(0))SetDIBits h, picTmp, 0, BI.bmiHeader.biHeight, BMPBits(0), BI, DIB_PAL_COLORS SelectObject h, picTmp SetDIBColorTable h, 0, 256, BI.bmiColors(0) DeleteObject picTmp 象这样能够图形是对的,但是颜色是乱的,请问怎样才正确???
这个问题的重点在于怎样通过得到的调色板数据重新整合为图数据,最后得到正确的图形,是否可用selectpalette等palette系列api解决?怎样解决?
http://www.csdn.net/expert/topic/176/176451.shtm
Public Type
palVersion As Integer 版本你试一试 &h300
palNumEntries As Integer 为颜色数
palPalEntry(255) As PALETTEENTRY 255是颜色数
End TypePublic Type PALETTEENTRY
peRed As Byte
peGreen As Byte
peBlue As Byte
peFlags As Byte
End Type用 copymemery 复制调色板数据到 LOGPALETTE.palPalEntry()
createoalette() 建立句柄
然后 selectpalette 再试一试
rgbBlue As Byte
rgbGreen As Byte
rgbRed As Byte
rgbReserved As Byte
End Type
Private Type BITMAPINFOHEADER '40 bytes
biSize As Long
biWidth As Long
biHeight As Long
biPlanes As Integer
biBitCount As Integer
biCompression As Long
biSizeImage As Long
biXPelsPerMeter As Long
biYPelsPerMeter As Long
biClrUsed As Long
biClrImportant As Long
End Type
Private Type BITMAPINFO_1BPP
bmiHeader As BITMAPINFOHEADER
bmiColors(0 To 1) As RGBQUAD
End Type
Private Type BITMAPINFO_4BPP
bmiHeader As BITMAPINFOHEADER
bmiColors(0 To 15) As RGBQUAD
End Type
Private Type BITMAPINFO_8BPP
bmiHeader As BITMAPINFOHEADER
bmiColors(0 To 255) As RGBQUAD
End Type
Private Type BITMAPINFO_ABOVE8
bmiHeader As BITMAPINFOHEADER
End TypePrivate Const DIB_PAL_COLORS = 1 ' color table in palette indices
Private Const DIB_PAL_INDICES = 2 ' No color table indices into surf palette
Private Const DIB_PAL_LOGINDICES = 4 ' No color table indices into DC palette
Private Const DIB_PAL_PHYSINDICES = 2 ' No color table indices into surf palette
Private Const DIB_RGB_COLORS = 0 ' color table in RGBsPrivate Declare Function GetDIBits Lib "gdi32" (ByVal hdc As Long, ByVal hBitmap As Long, ByVal nStartScan As Long, ByVal nNumScans As Long, lpBits As Any, lpBI As Any, ByVal wUsage As Long) As Long
Private Declare Function SetDIBits Lib "gdi32" (ByVal hdc As Long, ByVal hBitmap As Long, ByVal nStartScan As Long, ByVal nNumScans As Long, lpBits As Any, lpBI As BITMAPINFO, ByVal wUsage As Long) As Long
Private Sub Command1_Click()
On Error Resume Next
Dim tBI As BITMAPINFO_8BPP
Dim Bit() As Byte, lSize1 As Long
With tBI.bmiHeader
.biSize = Len(tBI.bmiHeader)
.biWidth = 图片宽
.biHeight = 图片高
.biPlanes = 1
.biBitCount = 8
.biCompression = BI_RGB
End With
'调色数据
For i = 0 To 255
tBI.bmiColors(i).rgbRed = r
tBI.bmiColors(i).rgbGreen = g
tBI.bmiColors(i).rgbBlue = b
Next
'P是图片框
lSize1 = 图片宽
lSize1 = lSize1 * 3
lSize1 = ((lSize1 + 3) / 4) * 4
lSize1 = lSize1 * 图片高 'bit()是图像数据
SetDIBits P.hdc, hbmp, 0, 图片高, Bit(0), tBI, DIB_RGB_COLORSEnd Sub
Dim BIH As BITMAPINFOHEADER
Dim BMPBits() As Byte
Dim FN As Long
Dim picTmp As Long, h As Long
Dim BI As BITMAPINFOFN = FreeFile
Open sFileName For Binary As #FN
Get #FN, , BFH
Get #FN, , BI.bmiHeader
ReDim BMPBits(BI.bmiHeader.biWidth * BI.bmiHeader.biHeight)
Get #FN, , BI.bmiColors()
Seek #FN, 1078
Get #FN, , BMPBits()
Close #FNpicTmp = CreateDIBSection(GetDC(0), BI, DIB_PAL_COLORS, ByVal 0&, ByVal 0&, ByVal 0&)h = CreateCompatibleDC(GetDC(0))SetDIBits h, picTmp, 0, BI.bmiHeader.biHeight, BMPBits(0), BI, DIB_PAL_COLORS
SelectObject h, picTmp
SetDIBColorTable h, 0, 256, BI.bmiColors(0)
DeleteObject picTmp
象这样能够图形是对的,但是颜色是乱的,请问怎样才正确???