我的意思是为标题栏下方的描述对话框着色。我成功地改变了字体,但背景完全不同。
当我到处读到它是通过捕获WM_CTLCOLORSTATIC消息来完成的,但是没有人在我应该捕获此消息的地方放置完整的代码,这段代码就像我理解的那样,我把它放到对话框的回调过程中。
问题是WM_CTLCOLORSTATIC永远不会被调用。
#include <windows.h>
#include <iostream>
#include <shlobj.h> //for Shell API, dir dialog
#include <commctrl.h>
int CALLBACK BrowseCallBackProc( HWND hwnd, UINT uMsg, LPARAM lParam, LPARAM lpData) {
switch(uMsg) {
case BFFM_INITIALIZED: {
HWND static_control = NULL;
char szClassName[_MAX_PATH];
for (HWND hChild = GetWindow(hwnd, GW_CHILD); hChild != NULL; hChild = GetNextWindow(hChild, GW_HWNDNEXT))
{
if ((GetWindowLong(hChild, GWL_STYLE) & WS_VISIBLE) == 0) continue;
GetClassName(hChild, szClassName, _countof(szClassName));
if (!strcmp("Static",szClassName)) {
static_control = hChild;
break;
}
}
HFONT hFont = CreateFont (13, 0, 0, 0, FW_DONTCARE, FALSE, FALSE, FALSE, ANSI_CHARSET, OUT_TT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_DONTCARE, TEXT("Fixedsys"));
SendMessage(static_control, WM_SETFONT, (WPARAM)hFont, TRUE);
break;
}
case WM_CTLCOLORSTATIC: {
std::cout << "WM_CTLCOLORSTATIC fired!" << std::endl;
break;
}
}
}
int main() {
using namespace std;
BROWSEINFOW bi;
LPITEMIDLIST pidl;
LPMALLOC pMalloc;
if (SUCCEEDED (::SHGetMalloc (&pMalloc))) {
::ZeroMemory (&bi,sizeof(bi));
bi.hwndOwner = NULL;
bi.lpszTitle = L"ok, now how to make my background... yellow for example ?";
bi.pszDisplayName = 0;
bi.pidlRoot = 0;
bi.ulFlags = BIF_NEWDIALOGSTYLE | BIF_VALIDATE | BIF_USENEWUI | BIF_UAHINT;
bi.lpfn = BrowseCallBackProc;
bi.lParam = (LPARAM)L"d:\\";
pidl = ::SHBrowseForFolderW(&bi);
}
system("pause");
}
答案 0 :(得分:1)
您可以使用SetWindowSubclass函数对对话框窗口进行子类化。
在指定的回调函数中,您将收到WM_CTLCOLORSTATIC
条消息。
答案 1 :(得分:0)
MSDN documentation提到您传递给::SHBrowseForFolder
的回调程序仅用于接收四种类型的事件:
BFFM_INITIALIZED
BFFM_IUNKNOWN
BFFM_SELCHANGED
BFFM_VALIDATEFAILE
这些事件都与WM_CTLCOLORSTATIC
消息无关,该消息被发送到父窗口的窗口过程。