FindResource + LoadResource + LockResource
Определяем размеры картинки хранящейся в ресурсах:
Code: |
function PictureSize: TSize; var ResHandle: HWND; ResData: HWND; BMI: PBitmapInfo; begin Result.cx := 0; Result.cy := 0; ResHandle := FindResource(HInstance, MAKEINTRESOURCE(200), RT_BITMAP); if ResHandle <> 0 then begin ResData := LoadResource(HInstance, ResHandle); if ResData <> 0 then try BMI := LockResource(ResData); if Assigned(BMI) then try Result.cx := BMI.bmiHeader.biWidth; Result.cy := BMI.bmiHeader.biHeight; finally UnlockResource(ResData); end; finally FreeResource(ResData); end; end; end; |
Получаем список всех ресурсов
Code: |
function GetResourceList: Boolean; var Errors: Cardinal;
function CallBack(hModule: HMODULE; lpType: PChar; lpzName: LPTSTR; lParam: Longint): BOOL; stdcall; var Size: Cardinal; begin Result := True; if Assigned(lpzName) then begin Size := Length(ResourceName); Inc(Size); SetLength(ResourceName, Size); ResourceName[Size - 1] := ShortString(lpzName); if (ResourceName[Size - 1] <> 'RES_INI') and (ResourceName[Size - 1] <> 'RES_MDB') then Inc(Errors); end; end;
begin Result := True; ResourceName := nil; Errors := 0; EnumResourceNames(HInstance, 'INSTALL', @CallBack, 0); if (Length(ResourceName) <> 2) or (Errors > 0) then begin MessageBox(Handle, PChar(ERR_CORRUPT), PChar(ERR_GLOBAL), MB_OK + MB_ICONERROR); Result := False; PostQuitMessage(0); end; end; |
Извлекаем ресурс в файл
Code: |
function ExtractResource: Boolean; const ResName = 'RES_MDB';
function FileWrite(Handle: Integer; const Buffer; Count: LongWord): Integer; const BlockSize = 1024;
type TArray = array of Byte;
var Buff: array [0..BlockSize - 1] of Byte; Counter, CurCount, A, I: LongWord; begin Counter := 0; Result := Count; I := 10; repeat if Count - Counter > BlockSize then CurCount := BlockSize else CurCount := Count - Counter;
Move(TArray(@Buffer)[Counter], Buff[0], CurCount); if WriteFile(THandle(Handle), Buff, CurCount, LongWord(Result), nil) then Inc(Counter, CurCount) else begin Result := -1; Exit; end;
A := Round((Counter / Count) * 100); if A > I then begin I := A; SendMessage(Progress, PBM_SETPOS, A, 0); end;
until Counter = Count; end;
var ResHandle: HWND; ResData: HWND; LockRes: Pointer; fHandle: Integer; Size: Integer; begin Result := False; try ResHandle := FindResource(HInstance, PChar(ResName), 'INSTALL'); if ResHandle = 0 then Exit; ResData := LoadResource(HInstance, ResHandle); if ResData = 0 then Exit; try LockRes := LockResource(ResData); if not Assigned(LockRes) then Exit; try fHandle := FileCreate(BasePath + '\MainDB.~mdb'); if fHandle = -1 then Exit; try Size := SizeofResource(HInstance, ResHandle);
if FileWrite(fHandle, LockRes^, Size) = -1 then Exit;
Result := True; StatusDone := True; finally CloseHandle(THandle(fHandle)); end; finally UnlockResource(ResData); end; finally FreeResource(ResData); end; finally PostMessage(Handle, WM_NOTIFY_THREAD_RESULT, Integer(Result), 0); end; end; |
Отрисовываем картинку из ресурса на форме:
Code: |
procedure ShowPicture;
function Rect(Left, Top, Right, Bottom: Integer): TRect; begin Result.Left := Left; Result.Top := Top; Result.Right := Right; Result.Bottom := Bottom; end;
var Bitmap: HBITMAP; BitmapSize: TSize; DC, BitmapDC, OldDC: HDC; bLeft, bTop: Cardinal; _Rect: TRect; S: String; Pen: HPEN; begin Bitmap := LoadBitmap(HInstance, MAKEINTRESOURCE(200)); if Bitmap <> 0 then try BitmapSize := PictureSize; DC := GetDC(Handle); try BitmapDC := CreateCompatibleDC(DC); try OldDC := SelectObject(BitmapDC, Bitmap); try bLeft := (Width - BitmapSize.cx); bTop := 0; StretchBlt(DC, 0, 0, bLeft, BitmapSize.cy, BitmapDC, 0, 0, 1, BitmapSize.cy, SRCCOPY); BitBlt(DC, bLeft, bTop, BitmapSize.cx, BitmapSize.cy, BitmapDC, 0, 0, SRCCOPY);
SetBkMode(DC, OPAQUE); if hFontBold <> 0 then SelectObject(DC, hFontBold); S := INFO1; _Rect := Rect(10, 6, 230, 31); DrawText(DC, PChar(S), Length(S), _Rect, DT_WORDBREAK);
if hFontNormal <> 0 then SelectObject(DC, hFontNormal); S := INFO2; _Rect := Rect(10, 40, 280, 70); DrawText(DC, PChar(S), Length(S), _Rect, DT_WORDBREAK + DT_NOCLIP); S := INFO3; _Rect := Rect(10, 55, 280, 100); DrawText(DC, PChar(S), Length(S), _Rect, DT_WORDBREAK + DT_NOCLIP);
Pen := CreatePen(PS_SOLID, 1, GetSysColor(COLOR_BTNSHADOW)); try SelectObject(DC, Pen); MoveToEx(DC, 6, 127, nil); LineTo(DC, 349, 127); finally DeleteObject(Pen); end;
Pen := CreatePen(PS_SOLID, 1, GetSysColor(COLOR_BTNHIGHLIGHT)); try SelectObject(DC, Pen); MoveToEx(DC, 348, 128, nil); LineTo(DC, 5, 128); finally DeleteObject(Pen); end;
finally SelectObject(OldDC, Bitmap); end; finally DeleteDC(BitmapDC); end; finally ReleaseDC(Handle, DC); end; finally DeleteObject(Bitmap); end; end; |
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