Function hDCToPicture(ByVal hDCSrc As Long, ByVal LeftSrc As Long, ByVal TopSrc As Long, ByVal WidthSrc As Long, ByVal HeightSrc As Long) As Picture
Dim hDCMemory As Long, hBmp As Long, hBmpPrev As Long, R As Long
Dim hPal As Long, hPalPrev As Long, RasterCapsScrn As Long, HasPaletteScrn As Long
Dim PaletteSizeScrn As Long, LogPal As LOGPALETTE
'Create a compatible device context
hDCMemory = CreateCompatibleDC(hDCSrc)
'Create a compatible bitmap
hBmp = CreateCompatibleBitmap(hDCSrc, WidthSrc, HeightSrc)
'Select the compatible bitmap into our compatible device context
hBmpPrev = SelectObject(hDCMemory, hBmp)
'Raster capabilities?
RasterCapsScrn = GetDeviceCaps(hDCSrc, RASTERCAPS) ' Raster
'Does our picture use a palette?
HasPaletteScrn = RasterCapsScrn And RC_PALETTE ' Palette
'What's the size of that palette?
PaletteSizeScrn = GetDeviceCaps(hDCSrc, SIZEPALETTE) ' Size of
If HasPaletteScrn And (PaletteSizeScrn = 256) Then
'Set the palette version
LogPal.palVersion = &H300
'Number of palette entries
LogPal.palNumEntries = 256
'Retrieve the system palette entries
R = GetSystemPaletteEntries(hDCSrc, 0, 256, LogPal.palPalEntry(0))
'Create the palette
hPal = CreatePalette(LogPal)
'Select the palette
hPalPrev = SelectPalette(hDCMemory, hPal, 0)
'Realize the palette
R = RealizePalette(hDCMemory)
End If
'Copy the source image to our compatible device context
R = BitBlt(hDCMemory, 0, 0, WidthSrc, HeightSrc, hDCSrc, LeftSrc, TopSrc, vbSrcCopy)
'Restore the old bitmap
hBmp = SelectObject(hDCMemory, hBmpPrev)
If HasPaletteScrn And (PaletteSizeScrn = 256) Then
'Select the palette
hPal = SelectPalette(hDCMemory, hPalPrev, 0)
End If
'Delete our memory DC
R = DeleteDC(hDCMemory)
Set hDCToPicture = CreateBitmapPicture(hBmp, hPal)
End Function
Function CreateBitmapPicture(ByVal hBmp As Long, ByVal hPal As Long) As Picture
Dim R As Long, Pic As PicBmp, IPic As IPicture, IID_IDispatch As GUID
'Fill GUID info
With IID_IDispatch
.Data1 = &H20400
.Data4(0) = &HC0
.Data4(7) = &H46
End With
'Fill picture info
With Pic
.Size = Len(Pic) ' Length of structure
.Type = vbPicTypeBitmap ' Type of Picture (bitmap)
.hBmp = hBmp ' Handle to bitmap
.hPal = hPal ' Handle to palette (may be null)
End With
'Create the picture
R = OleCreatePictureIndirect(Pic, IID_IDispatch, 1, IPic)
'Return the new picture
Set CreateBitmapPicture = IPic
End Function
dim p as ipicturedisp
set p=loadpicture("file")
Call SetStretchBltMode(DCStretched, 3)
KeyName = Space$(MAX_SIZE)
Сейчас этот форум просматривают: нет зарегистрированных пользователей и гости: 157