References ▼
#include "ltwrappr.h"
L_INT LToolbar::AddButton(uButtonRefId, pButtonInfo, dwFlags )
Adds a new button to the toolbar.
Reference to use for positioning the new button inside the toolbar.
Pointer to an LBUTTONINFO structure containing data for the new button.
Flag that indicates where to add the new button, with respect to the button specified in uButtonRefId. Possible values are:
| Flag | Meaning |
|---|---|
| TOOLBAR_ADD_BEFORE | Add this button before the button specified by uButtonRefId in the toolbar. |
| TOOLBAR_ADD_AFTER | Add this button after the button specified by uButtonRefId in the toolbar. |
| TOOLBAR_ADD_TOOL | If this flag is specified, the toolkit will create a new tool and make this button the first button of the new tool. |
If this flag is not specified, the toolkit will add the new button to the same tool as uButtonRefId.
Note: If the toolbar does not contain any buttons, both uButtonRefId and dwFlags will be ignored and the new tool and button will be added to the toolbar itself.
As an example, if dwFlags is set to TOOLBAR_ADD_BEFORE | TOOLBAR_ADD_TOOL, then a new tool will be added before the button specified by uButtonRefId. If dwFlags is set to TOOLBAR_ADD_BEFORE, then the new button will be added before the button specified by uButtonRefId and it will become part of the same tool as the button specified by uButtonRefId.
For adding a new button to an existing toolbar, use one of the existing buttons' uButtonRefId that you can retrieve by calling the LToolbar::GetToolbarInfo. You can then use the flags to either add the new button before or after any existing buttons.
| Value | Meaning |
|---|---|
| SUCCESS | The function was successful. |
| < 1 | An error occurred. Refer to Return Codes. |
Required DLLs and Libraries
This example will create an empty toolbar and then add four buttons.
#define IDB_BITMAP1 101#define IDB_BITMAP2 102#define IDB_BITMAP3 103#define IDB_BITMAP4 104L_INT LToolbar__AddButtonExample( HWND hWnd, LToolbar* tlb){L_INT nRet;/*Assume that m_hWnd is a valid window handle*//* Initiate the toolbar handle */nRet = tlb->Initialize ();if(nRet != SUCCESS)return nRet;/* Check the validity of the handle */if ( tlb->IsValid () ){POINT pt = { 0, 0 } ;/* Initiate the point will be used to align the toolbar at the top-left of its owner client area */::ClientToScreen ( hWnd, &pt ) ;/* Create the toolbar */nRet = tlb->Create (hWnd, TEXT("Tools Window"), TOOLBAR_EMPTY ) ;if(nRet != SUCCESS)return nRet;/* assume these resource IDs contain valid bitmaps */const L_INT nResId[ 4 ] = { IDB_BITMAP1, IDB_BITMAP2, IDB_BITMAP3, IDB_BITMAP4 };const L_TCHAR *szToolTipText[ 4 ] = { TEXT("Button 1"), TEXT("Button 2"), TEXT("Button 3"), TEXT("Button 4") };LBUTTONINFO ButtonInfo;L_INT i;L_UINT uRefId;L_UINT32 dwFlags;uRefId = 0; /* we dont need a reference button when adding the first one */for( i = 0; i < 4; i++ ){ButtonInfo.uID = i + 1;ButtonInfo.hBitmap = LoadBitmap((HINSTANCE) L_GETWINDOWLONGPTR( hWnd /*hWndParent*/, GWLP_HINSTANCE ),MAKEINTRESOURCE( nResId[ i ] ) );if(ButtonInfo.hBitmap){lstrcpy( ButtonInfo.szToolTipText, szToolTipText[ i ] );ButtonInfo.dwTag = 0L;ButtonInfo.fsState = TBSTATE_ENABLED;ButtonInfo.uStructSize=sizeof(LBUTTONINFO);dwFlags = TOOLBAR_ADD_AFTER;if( i == 0 || i == 2 )dwFlags |= TOOLBAR_ADD_TOOL;nRet = tlb->AddButton (uRefId, &ButtonInfo, dwFlags );if(nRet != SUCCESS)return nRet;DeleteObject( ButtonInfo.hBitmap ); /* the toolbar toolkit keeps its own copy */uRefId = ButtonInfo.uID; /* save last button ID */}}/* Set the toolbar position */nRet = tlb->SetPosition (&pt, TOOLBAR_POSITION_TOP | TOOLBAR_POSITION_LEFT ) ;if(nRet != SUCCESS)return nRet;/* Show the toolbar */nRet = tlb->SetVisible (TRUE ) ;if(nRet != SUCCESS)return nRet;}return SUCCESS;}