Date: 02-16-2022
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created by gbSnippets
'Compilable Example: (Jose Includes)
' ========================================================================================
' GDI+ World transformation
' 99.9% based on Jos� Roca examples on GDI+ :)
' ========================================================================================
' SED_PBWIN
#Compiler PBWin 9, PBWin 10
#Compile EXE
#Dim All
%Unicode=1
#Include "win32api.inc"
#Include "gdiplus_simple.inc"
%IDC_GRAPHIC = 101
%MatrixOrderPrepend = 0
Sub GDIP_DrawRotatedImage (ByVal hdc AS DWord)
Local pGraphics AS DWord
Local pImage AS DWord
Local strFileName As String
GdipCreateFromHDC(hdc, pGraphics)
strFileName = UCODE$(EXE.PATH$+"\ruler.bmp")
GdipLoadImageFromFile(STRPTR(strFileName), pImage)
' -- Move to center
GdipTranslateWorldTransform(pGraphics, 250.0!, 250.0!, %MatrixOrderPrepend)
' -- Turn
GdipRotateWorldTransform(pGraphics, -45.0!, %MatrixOrderPrepend)
' -- Push back to make it turn around center
GdipTranslateWorldTransform(pGraphics, -300.0/2!, -300.0/2!, %MatrixOrderPrepend)
GdipDrawImage(pGraphics, pImage, 0, 0)
' // Cleanup
IF pImage THEN GdipDisposeImage(pImage)
IF pGraphics THEN GdipDeleteGraphics(pGraphics)
End Sub
' ========================================================================================
' ========================================================================================
' Main
' ========================================================================================
Function WINMAIN (ByVal hInstance AS DWord, ByVal hPrevInstance AS DWord, ByVal lpszCmdLine As AsciiZ PTR, ByVal nCmdShow As Long) As Long
Local hr As Long
Local hDlg AS DWord
Local hdc AS DWord
Local token AS DWord
Local StartupInput AS GdiplusStartupInput
' Initialize GDI+
StartupInput.GdiplusVersion = 1
hr = GdiplusStartup(token, StartupInput, ByVal %NULL)
IF hr THEN
MSGBOX "Error initializing GDI+"
EXIT Function
END IF
' Create a new dialog
DIALOG NEW PIXELS, 0, "GdipRotateTextureTransform", , , 500, 500, %WS_SYSMENU TO hDlg
' Add a graphic control
CONTROL ADD GRAPHIC, hDlg, %IDC_GRAPHIC,"", 0, 0, 500, 500
' Select the drawing target
GRAPHIC ATTACH hDlg, %IDC_GRAPHIC
' Set the foreground and background color
GRAPHIC COLOR %BLACK, %WHITE
' Clear the entire selected graphic window
GRAPHIC CLEAR
' Retrieve the handle of the device context
GRAPHIC GET DC TO hdc
' Draw the graphics
GDIP_DrawRotatedImage(hdc)
DIALOG SHOW MODAL hDlg, CALL DlgProc
' Shutdown GDI+
GdiplusShutdown token
End Function
' ========================================================================================
' ========================================================================================
' Main Dialog procedure
' ========================================================================================
CallBack Function DlgProc() As Long
SELECT CASE CBMSG
CASE %WM_COMMAND
SELECT CASE CBCTL
CASE %IDCANCEL
IF CBCTLMSG = %BN_CLICKED THEN DIALOG END CBHNDL, 0
END SELECT
END SELECT
End Function
' ======================
'gbs_00964
'Date: 03-10-2012
http://www.garybeene.com/sw/gbsnippets.htm