GRAYSCALEDLGPARAMS
typedef struct _GRAYSCALEDLGPARAMS
{
L_UINT uStructSize;
pBITMAPHANDLE pBitmap;
L_BOOL bZoomToFit;
L_INT nRedFactor;
L_INT nGreenFactor;
L_INT nBlueFactor;
L_UINT32 uDlgFlags;
LTCOMMDLGHELPCB pfnHelpCallback;
L_VOID *pHelpCallBackUserData;
} GRAYSCALEDLGPARAMS, * LPGRAYSCALEDLGPARAMS;
The GRAYSCALEDLGPARAMS structure provides information used to initialize the dialog box created by the LDialogColor::DoModalGrayScale function. After the user closes the dialog box, this structure is updated with information about the user's selections.
Member |
Description |
|
uStructSize |
Size of this structure, in bytes. Use the sizeof operator to calculate this value. |
|
pBitmap |
Ignored. |
|
bZoomToFit |
Flag that indicates the initial zoom level for previewing the image. Possible values are: |
|
|
Value |
Meaning |
|
TRUE |
Set the initial zoom level to "Zoom to fit". |
|
FALSE |
Set the initial zoom level to "Normal (1:1)". |
nRedFactor |
Value that represents the percentage or weight given to the red value of each pixel in the bitmap. Possible values are (0-1000), nRedFactor + nGreenFactor + nBlueFactor must equal 1000. |
|
nGreenFactor |
Value that represents the percentage or weight given to the green value of each pixel in the bitmap. Possible values are (0-1000), nRedFactor + nGreenFactor + nBlueFactor must equal 1000. |
|
nBlueFactor |
Value that represents the percentage or weight given to the blue value of each pixel in the bitmap. Possible values are (0-1000), nRedFactor + nGreenFactor + nBlueFactor must equal 1000. |
|
uDlgFlags |
User interface flags for this dialog, which determine the layout and action of the dialog. Possible values are: |
|
|
Value |
Meaning |
|
DLG_GRAYSCALE_SHOW_CONTEXTHELP |
[0x00000002] dialog should contain a context sensitive help icon. |
pfnHelpCallback |
Ignored. |
|
pHelpCallBackUserData |
Ignored. |