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Win32: TFontDialog: start implementing calling OnApplyClicked. Part of Issue #0028636.

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git-svn-id: trunk@52854 -
This commit is contained in:
bart 2016-08-21 17:25:37 +00:00
parent 01c9a4b4d7
commit 84f90e1ba1
1 changed files with 50 additions and 0 deletions
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50
lcl/interfaces/win32/win32wsdialogs.pp
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@ -1090,6 +1090,46 @@ end;
{ TWin32WSFontDialog }
function FontDialogCallBack(Wnd: HWND; uMsg: UINT; wParam: WPARAM;
lParam: LPARAM): UINT_PTR; stdcall;
const
ApplyBtnControlID = 1026;
const //don't use initialize "var", since that will be reset to nil at every callback
Dlg: ^TFontDialog = nil;
begin
Result := 0;
case uMsg of
WM_INITDIALOG:
begin
//debugln(['FontDialogCallBack: WM_INITDIALOG']);
//debugln([' PChooseFontW(LParam)^.lCustData=',IntToHex(PChooseFontW(LParam)^.lCustData,8)]);
PtrInt(Dlg) := PChooseFontW(LParam)^.lCustData;
end;
WM_COMMAND:
begin
// LoWord(wParam) must be ApplyBtnControlID,
// since HiWord(wParam) = 0 when button is clicked, wParam = LoWord(wParam) in this case
if (wParam = ApplyBtnControlID) then
begin
//debugln(['FontDialogCallBack:']);
//debugln([' wParam=',wParam,' lParam=',lParam]);
//debugln([' HiWord(wParam)=',HiWord(wParam),' LoWord(wParam)',LoWord(wParam)]);
//debugln(['FontDialogCallback calling OnApplyClicked']);
if Assigned(Dlg) and Assigned(Dlg^) then
begin
if Assigned(Dlg^.OnApplyClicked) then
begin
//ToDo: retrieve current settings of the Windows dialog and aplly to
//our instance of TFontDialog
Dlg^.OnApplyClicked(Dlg^);
Result := 1;
end;
end;
end;
end;
end;
end;
class function TWin32WSFontDialog.CreateHandle(const ACommonDialog: TCommonDialog): THandle;
function GetFlagsFromOptions(Options : TFontDialogOptions): dword;
@ -1141,6 +1181,16 @@ begin
LPLogFont := commdlg.PLOGFONTW(@LFW);
Flags := GetFlagsFromOptions(Options);
Flags := Flags or CF_INITTOLOGFONTSTRUCT or CF_BOTH;
//setting CF_ENABLEHOOK shows an oldstyle dialog, unless lpTemplateName is set
//and a template is linked in as a resource,
//this also requires additional flas set:
//https://msdn.microsoft.com/en-us/library/windows/desktop/ms646832(v=vs.85).aspx
if (fdApplyButton in Options) then
begin
Flags := Flags or CF_ENABLEHOOK;
lpfnHook := @FontDialogCallBack;
lCustData := PtrInt(@ACommonDialog);
end;
RGBColors := DWORD(Font.Color);
if fdLimitSize in Options then
begin