API -> GetDIBits [ Library : gdi32.dll, Category : Bitmap ] [C#, VB, VB.net]

GetDIBits

Library : gdi32.dll Category : Bitmap

Api Example(s)
Working with AVI Files - Part 3 (Working With Frames, AVI to BMP)
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Load, Modify and Save 1, 4, 8, 15 (Bit-fields), 16, 24 and 32-bit Bitmaps using GDI Apis.
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API Description :

The GetDIBits function retrieves the bits of the specified bitmap and copies them into a buffer using the specified format.

VB Declaration :

Show Multiline Public Private

Declare Function GetDIBits Lib "gdi32" (ByVaL aHDC 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

Parameters :

· hdc
Identifies the device context.

· hbmp
Identifies the bitmap.

· uStartScan
Specifies the first scan line to retrieve.

· cScanLines
Specifies the number of scan lines to retrieve.

· lpvBits
Points to a buffer to receive the bitmap dat

Return :

If the lpvBits parameter is non-NULL and the function succeeds, the return value is the number of scan lines copied from the bitmap. 

Windows 95: 

If the lpvBits parameter is NULL and GetDIBits successfully fills the BITMAPINFO structure, the return

OS Requirement :

Requires Windows NT 3.1 or later
Requires Windows 95 or later

Dotnet Replacement :

System.Drawing.Bitmap.LockBits