GM_Layer_tGetPixelBandValue Method (GM_Layer_t, Int32, Int32, Int32, Int32)
Retrieves the band value at a given pixel location in the provided layer.

Namespace:  GlobalMapper
Assembly: GlobalMapperWrapperNET (in GlobalMapperWrapperNET.dll) Version: 18.0.0.0 (18.0.0.0)

Syntax
C#
public static GM_Error_t32 GetPixelBandValue(
	GM_Layer_t aLayer,
	int aRow,
	int aCol,
	int aBand,
	out int aVal
)

Parameters

aLayer
Type: GlobalMapperGM_Layer_t
IN: Layer to get color from
aRow
Type: SystemInt32
IN: Y coord of pixel (0 is topmost)
aCol
Type: SystemInt32
IN: X coord of pixel (0 is leftmost)
aBand
Type: SystemInt32
IN: Band to get value for (0-based, so first band is 1)
aVal
Type: SystemInt32
OUT: Color of pixel at location

Return Value

Type: GM_Error_t32
A GM Error Code
See Also