如何临时加载字体？ [英] How can i temporarily load a font?

问题描述

我需要在程序中临时加载一些字体。最好从dll资源文件中获取。

I need to load some fonts temporarily in my program. Preferably from a dll resource file.

推荐答案

这里是Delphi版本：

And here a Delphi version:

procedure LoadFontFromDll(const DllName, FontName: PWideChar);
var
  DllHandle: HMODULE;
  ResHandle: HRSRC;
  ResSize, NbFontAdded: Cardinal;
  ResAddr: HGLOBAL;
begin
  DllHandle := LoadLibrary(DllName);
  if DllHandle = 0 then
    RaiseLastOSError;
  ResHandle := FindResource(DllHandle, FontName, RT_FONT);
  if ResHandle = 0 then
    RaiseLastOSError;
  ResAddr := LoadResource(DllHandle, ResHandle);
  if ResAddr = 0 then
    RaiseLastOSError;
  ResSize := SizeOfResource(DllHandle, ResHandle);
  if ResSize = 0 then
    RaiseLastOSError;
  if 0 = AddFontMemResourceEx(Pointer(ResAddr), ResSize, nil, @NbFontAdded) then
    RaiseLastOSError;
end;

使用方式如下：

var
  FontName: PChar;
  FontHandle: THandle;
...
  FontName := 'DEJAVUSANS';
  LoadFontFromDll('Project1.dll' , FontName);
  FontHandle := CreateFont(0, 0, 0, 0, FW_NORMAL, 0, 0, 0, DEFAULT_CHARSET,
    OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH,
    FontName);
  if FontHandle = 0 then
    RaiseLastOSError;

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