/**********************************************************************
* ApplyTheme (UXTHEME.4)
*
* Set a theme file to be the currently active theme
*
* PARAMS
* hThemeFile Handle to theme file
* unknown See notes
* hWnd Window requesting the theme change
*
* RETURNS
* Success: S_OK
* Failure: HRESULT error-code
*
* NOTES
* I'm not sure what the second parameter is (the datatype is likely wrong), other then this:
* Under XP if I pass
* char b[] = "";
* the theme is applied with the screen redrawing really badly (flickers)
* char b[] = "\0"; where \0 can be one or more of any character, makes no difference
* the theme is applied smoothly (screen does not flicker)
* char *b = "\0" or NULL; where \0 can be zero or more of any character, makes no difference
* the function fails returning invalid parameter... very strange
*/
HRESULT WINAPI ApplyTheme(HTHEMEFILE hThemeFile, char *unknown, HWND hWnd)
{
HRESULT hr;
TRACE("(%p,%s,%p)\n", hThemeFile, unknown, hWnd);
hr = UXTHEME_SetActiveTheme(hThemeFile);
UXTHEME_broadcast_msg (NULL, WM_THEMECHANGED);
return hr;
}
/***********************************************************************
* UXTHEME_ApplyTheme
*
* Change the current active theme
*/
static HRESULT UXTHEME_ApplyTheme(PTHEME_FILE tf)
{
HKEY hKey;
WCHAR tmp[2];
HRESULT hr;
TRACE("UXTHEME_ApplyTheme\n");
if (tf && !ActiveThemeFile)
{
UXTHEME_BackupSystemMetrics();
}
hr = UXTHEME_SetActiveTheme(tf);
if (FAILED(hr))
return hr;
if (!tf)
{
UXTHEME_RestoreSystemMetrics();
}
TRACE("Writing theme config to registry\n");
if(!RegCreateKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
tmp[0] = ActiveThemeFile?'1':'0';
tmp[1] = '\0';
RegSetValueExW(hKey, szThemeActive, 0, REG_SZ, (const BYTE*)tmp, sizeof(WCHAR)*2);
if (ActiveThemeFile) {
RegSetValueExW(hKey, szColorName, 0, REG_SZ, (const BYTE*)tf->pszSelectedColor,
(lstrlenW(tf->pszSelectedColor)+1)*sizeof(WCHAR));
RegSetValueExW(hKey, szSizeName, 0, REG_SZ, (const BYTE*)tf->pszSelectedSize,
(lstrlenW(tf->pszSelectedSize)+1)*sizeof(WCHAR));
RegSetValueExW(hKey, szDllName, 0, REG_SZ, (const BYTE*)tf->szThemeFile,
(lstrlenW(tf->szThemeFile)+1)*sizeof(WCHAR));
}
else {
RegDeleteValueW(hKey, szColorName);
RegDeleteValueW(hKey, szSizeName);
RegDeleteValueW(hKey, szDllName);
}
RegCloseKey(hKey);
}
else
TRACE("Failed to open theme registry key\n");
UXTHEME_SaveSystemMetrics ();
return hr;
}
/***********************************************************************
* UXTHEME_LoadTheme
*
* Set the current active theme from the registry
*/
void UXTHEME_LoadTheme(BOOL bLoad)
{
HKEY hKey;
DWORD buffsize;
HRESULT hr;
WCHAR tmp[10];
PTHEME_FILE pt;
WCHAR szCurrentTheme[MAX_PATH];
WCHAR szCurrentColor[64];
WCHAR szCurrentSize[64];
BOOL bThemeActive = FALSE;
if(bLoad == TRUE)
{
/* Get current theme configuration */
if(!RegOpenKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
TRACE("Loading theme config\n");
buffsize = sizeof(tmp)/sizeof(tmp[0]);
if(!RegQueryValueExW(hKey, szThemeActive, NULL, NULL, (LPBYTE)tmp, &buffsize)) {
bThemeActive = (tmp[0] != '0');
}
else {
bThemeActive = FALSE;
TRACE("Failed to get ThemeActive: %d\n", GetLastError());
}
buffsize = sizeof(szCurrentColor)/sizeof(szCurrentColor[0]);
if(RegQueryValueExW(hKey, szColorName, NULL, NULL, (LPBYTE)szCurrentColor, &buffsize))
szCurrentColor[0] = '\0';
buffsize = sizeof(szCurrentSize)/sizeof(szCurrentSize[0]);
if(RegQueryValueExW(hKey, szSizeName, NULL, NULL, (LPBYTE)szCurrentSize, &buffsize))
szCurrentSize[0] = '\0';
if (query_reg_path (hKey, szDllName, szCurrentTheme))
szCurrentTheme[0] = '\0';
RegCloseKey(hKey);
}
else
TRACE("Failed to open theme registry key\n");
}
else
{
bThemeActive = FALSE;
}
if(bThemeActive) {
/* Make sure the theme requested is actually valid */
hr = MSSTYLES_OpenThemeFile(szCurrentTheme,
szCurrentColor[0]?szCurrentColor:NULL,
szCurrentSize[0]?szCurrentSize:NULL,
&pt);
if(FAILED(hr)) {
bThemeActive = FALSE;
}
else {
TRACE("Theme active: %s %s %s\n", debugstr_w(szCurrentTheme),
debugstr_w(szCurrentColor), debugstr_w(szCurrentSize));
UXTHEME_SetActiveTheme(pt);
MSSTYLES_CloseThemeFile(pt);
}
}
if(!bThemeActive) {
UXTHEME_SetActiveTheme(NULL);
TRACE("Theming not active\n");
}
}
