DK for Delphi | GisTypesUI.TGIS_BitmapAbstract.LockPixels | Fields | Methods | Properties
Prepare bitmap for direct pixel access operation.
// Delphi public procedure LockPixels( var _pixels : TGIS_Pixels; const _writable : Boolean; const _format : TGIS_BitmapFormat; const _order : TGIS_BitmapLinesOrder ); virtual; abstract;
// C++ Builder public: virtual void LockPixels( TGIS_Pixels* &_pixels, const bool _writable, TGIS_BitmapFormat* const _format, TGIS_BitmapLinesOrder* const _order ) = 0;
Name | Type | Description |
---|---|---|
_pixels | TGIS_Pixels | pixel buffer (allocated and maintained by LockPixels .. UnlockPixels |
_writable | Boolean | True if pixels will be modified |
_format | TGIS_BitmapFormat | desired format of locked pixels; on some platforms some system level operation required different pixel format then default |
_order | TGIS_BitmapLinesOrder | desired line order of locked pixels; on some platforms some system level operation required different order then default |
Must be paired with UnlockPixels.