Call this member function to set the button's command ID, style, and image number.
void SetButtonInfo(
int nIndex,
UINT nID,
UINT nStyle,
int iImage
);
Parameters
nIndex
Zero-based index of the button or separator for which information is to be set.nID
The value to which the button's command ID is set.nStyle
The new button style. The following button styles are supported:TBBS_BUTTON Standard pushbutton (default)
TBBS_SEPARATOR Separator
TBBS_CHECKBOX Auto check-box button
TBBS_GROUP Marks the start of a group of buttons
TBBS_CHECKGROUP Marks the start of a group of check-box buttons
**TBBS_DROPDOWN **Creates a drop-down list button.
**TBBS_AUTOSIZE **The button's width will be calculated based on the text of the button, not on the size of the image.
**TBBS_NOPREFIX **The button text will not have an accelerator prefix associated with it.
iImage
New index for the button's image within the bitmap.
Remarks
For separators, which have the style TBBS_SEPARATOR, this function sets the separator's width in pixels to the value stored in iImage.
备注
You can also set button states using the nStyle parameter; however, because button states are controlled by the ON_UPDATE_COMMAND_UI handler, any state you set using SetButtonInfo will be lost during the next idle processing. See How to Update User-Interface Objects and TN031: Control Bars for more information.
For information on bitmap images and buttons, see the CToolBar Overview and CToolBar::LoadBitmap.
Requirements
Header: afxext.h