GAMMAADJUSTMENTDLGPARAMS
typedef struct _GAMMAADJUSTMENTDLGPARAMS
{
L_UINT uStructSize;
pBITMAPHANDLE pBitmap;
L_BOOL bZoomToFit;
L_INT nRedValue;
L_INT nGreenValue;
L_INT nBlueValue;
L_BOOL bAllChannels;
L_UINT32 uDlgFlags;
LTCOMMDLGHELPCB pfnHelpCallback;
L_VOID *pHelpCallBackUserData;
} GAMMAADJUSTMENTDLGPARAMS, * LPGAMMAADJUSTMENTDLGPARAMS ;
The GAMMAADJUSTMENTDLGPARAMS structure provides information used to initialize the dialog box created by the LDialogColor::DoModalGammaAdjustment 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 be "zoom to fit". |
|
FALSE |
Set the initial zoom level to be "Normal (1:1)". |
nRedValue |
A variable to be updated with the Red value entered in the dialog. Set this to indicate the initial value for the dialog. Possible values range from 10 to 500. |
|
nGreenValue |
A variable to be updated with the Green value entered in the dialog. Set this to indicate the initial value for the dialog. Possible values range from 10 to 500. |
|
nBlueValue |
A variable to be updated with the Blue value entered in the dialog. Set this to indicate the initial value for the dialog. Possible values range from 10 to 500. |
|
bAllChannels |
Flag that indicates whether the "All Channels" check box is checked in the dialog. Set this to initialize the dialog. Possible values are: |
|
|
Value |
Meaning |
|
TRUE |
The "All Channels" check box is checked. |
|
FALSE |
The "All Channels" check box is not checked. |
uDlgFlags |
User interface flags for this dialog, which determine the layout and action of the dialog. Possible values are: |
|
|
Value |
Meaning |
|
DLG_GAMMAADJUSTMENT_SHOW_CONTEXTHELP |
[0x00000002] dialog should contain a context sensitive help icon. |
|
DLG_GAMMAADJUSTMENT_FORCELINKCHANNELS |
[0x00000010] Force the dialog to apply "Link \all channels" at all times. |
pfnHelpCallback |
Ignored. |
|
pHelpCallBackUserData |
Ignored. |