我使用此代码创建钢筋控件,并将带工具栏的区域引入钢筋中。
但是,当显示窗口时,我看不到工具栏。当我检查钢筋的高度时,在以下代码行中:int height = wp.rcNormalPosition.bottom - wp.rcNormalPosition.top;
我发现钢筋的高度仅为4像素。
#include <windows.h>
#include <stdlib.h>
#include <CommCtrl.h>
#pragma comment(lib, "comctl32.lib")
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
HINSTANCE instance;
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
instance = hInstance;
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_APPLICATION));
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = NULL;
wcex.lpszClassName = L"Example";
wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_APPLICATION));
RegisterClassEx(&wcex);
HWND hWnd = CreateWindow(L"Example", L"", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT,
500, 500, NULL, NULL, hInstance, NULL);
// Initialize common controls.
INITCOMMONCONTROLSEX icex;
icex.dwSize = sizeof(INITCOMMONCONTROLSEX);
icex.dwICC = ICC_COOL_CLASSES | ICC_BAR_CLASSES;
InitCommonControlsEx(&icex);
HWND hwndRebar = CreateWindowEx(WS_EX_TOOLWINDOW, REBARCLASSNAME, NULL, WS_CHILD | WS_VISIBLE | WS_BORDER,
0, 0, 100, 50, hWnd, NULL, instance, NULL);
// create toolbar
HWND hWndToolbar = CreateWindowEx(0 , TOOLBARCLASSNAME, NULL, WS_CHILD | TBSTYLE_TOOLTIPS,
0, 0, 0, 0, hwndRebar, (HMENU)0, instance, NULL);
HIMAGELIST hImageList = ImageList_Create(16, 16, ILC_COLOR16 | ILC_MASK, 3, 0);
SendMessage(hWndToolbar, TB_SETIMAGELIST, (WPARAM)0, (LPARAM)hImageList);
SendMessage(hWndToolbar, TB_BUTTONSTRUCTSIZE, (WPARAM)sizeof(TBBUTTON), 0);
TBBUTTON tbb[4] =
{
{0,0,TBSTATE_ENABLED,TBSTYLE_BUTTON},
{1,1,TBSTATE_ENABLED,TBSTYLE_BUTTON},
{2,2,TBSTATE_ENABLED,TBSTYLE_BUTTON},
};
SendMessage(hWndToolbar, (UINT) TB_ADDBUTTONS, 3, (LPARAM)&tbb);
SendMessage(hWndToolbar, TB_AUTOSIZE, 0, 0);
ShowWindow(hWndToolbar , SW_SHOW);
// Initialize band info.
REBARBANDINFO rbBand = { sizeof(REBARBANDINFO) };
rbBand.fMask = RBBIM_STYLE | RBBIM_TEXT | RBBIM_CHILD | RBBIM_CHILDSIZE | RBBIM_SIZE | RBBIM_COLORS;
rbBand.fStyle = RBBS_GRIPPERALWAYS;
// Get the height of the toolbar.
DWORD dwBtnSize = (DWORD)SendMessage(hWndToolbar, TB_GETBUTTONSIZE, 0,0);
// Set values unique to the band with the toolbar.
rbBand.clrFore = RGB(233, 233, 233);
rbBand.clrBack = RGB(200, 200, 200);
rbBand.lpText = TEXT("");
rbBand.hwndChild = hWndToolbar;
rbBand.cyChild = LOWORD(dwBtnSize);
rbBand.cyMinChild = LOWORD(dwBtnSize);
rbBand.cxMinChild = 3 * HIWORD(dwBtnSize);
// The default width is the width of the buttons.
rbBand.cx = 0;
// Add the band
SendMessage(hwndRebar, RB_INSERTBAND, (WPARAM)-1, (LPARAM)&rbBand);
// show the main window
ShowWindow(hWnd, nCmdShow);
// check the rebar size
WINDOWPLACEMENT wp;
GetWindowPlacement(hwndRebar, &wp);
int height = wp.rcNormalPosition.bottom - wp.rcNormalPosition.top;
MSG msg;
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return (int) msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_CREATE:
return 0;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
}
最佳答案
从评论中可以看出,解决方案是:
REBARBANDINFO rbBand;
rbBand.cbSize = REBARBANDINFO_V3_SIZE;
// initialize the rest here
这似乎会影响Windows的旧版本(特别是XP),因为原始代码可以在Windows 7上编译并正常运行。
在MSDN页面的注释中提到了这一点:http://msdn.microsoft.com/en-us/library/windows/desktop/bb774393.aspx
关于windows - 创建钢筋控件并将带工具栏的区域引入钢筋,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/16649908/