Available in LEADTOOLS Imaging Pro, Vector, Document, and Medical Imaging toolkits. |
Send this message to enable or disable the ImageList control's automatic processing of the keyboard.
Parameter |
Description |
|
wParam |
Boolean flag that specifies the keyboard status. Possible values are: |
|
|
Value |
Meaning |
|
TRUE |
ImageList Control will process the keyboard |
|
FALSE |
ImageList Control will not process the keyboard |
lParam |
Ignored, use 0. |
Returns
The previous setting for keyboard processing.
Comments
When automatic keyboard processing is enabled, the ImageList Control will process the following keys:
Key |
Event |
PageUp Up Arrow Left Arrow |
scroll up/left one item (depends on scroll style) |
PageDown Down Arrow Right Arrow |
scroll down/right one item (depends on scroll style) |
Ctrl + PageUp Ctrl + Up Ctlr + Left Home |
scroll up/left to beginning of list (depends on scroll style) |
Ctrl + PageDown Ctrl + Down Ctlr + Right End |
scroll up/left to end of list (depends on scroll style) |
Note: If the setting for AllowSelection is not ALLOWSELECTION_SINGLE, then the selected item will move up, down, left, or right, depending on the key(s) being processed. If AllowSelection is set to ALLOWSELECTION_MULTI, multiple items can be selected using the CTRL and/or SHIFT keys in conjunction with the keys listed above.
The associated macro is:
L_ImgListEnableKeyboard(hWnd, bFlag)
For a complete list of available macros, refer to the Ltlst.h file.
See Also
Elements: |
L_ILM_SETSCROLLSTYLE, L_ILM_GETSCROLLSTYLE, L_ILM_SETSELOPTIONS, L_ILM_GETSELOPTIONS |
Topics: |
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Example
L_INT ILM_ENABLEKEYBOARDExample(HWND hCtrl) { if(IsWindow(hCtrl)) { /* enable automatic keyboard processing */ return (L_INT)SendMessage(hCtrl, L_ILM_ENABLEKEYBOARD, (WPARAM)TRUE, 0L); } else return ERROR_INVALID_PARAMETER; }