qrencode-win32 / qrcodelib.dll (GNU License)

[José Roca]

You have to use the handle of the bitmap, not the handle of the dialog.

[Roy Chan]

Dear  José ,

I didn't create any bitmap for the graphic control which show the qrcode pattern. How can I create a bitmap and copy the existing qrcode pattern to the bitmap ? I have search the PowerBASIC document and FireFly forum. I don't know which command is for this purpose.

[José Roca]

I don't know anything about qrcode. I never have used it.

[Roy Chan]

Dear José


I use "CreateCompatibleBitmap" to create a bitmap.  I have checked that hDC and hBitmap is not empty. But the application crashed at the last line.

Code Select Expand


Global hDC As Dword
Global hBitmap As Dword

Graphic Get DC To hdc
hBitmap=CreateCompatibleBitmap(hdc,glngqrcodewidth,glngqrcodeheight)
ztrace Str$(hdc)& "/" & Str$(hbitmap)
         
Clipboard Reset
Clipboard Set Bitmap hbitmap



[José Roca]

You can't mix SDK and DDT. Handles returned by CreateBitmap or CreateCompatibleBitmap aren't compatible with DDT's Graphic or Clipboard statements.

What I mean is that I don't know how to copy the qrcode pattern to the bitmap because I never have used qrencode.

You must decide if you want to use SDK (Windows API) or DDT. You can't mix them.

[Roy Chan]

 Dear José         

Thank you for your reply everytime.  I am a newbie of PowerBASIC. So I confused with DDT and SDK. But finally I found the solution to copy the contents of graphic control into  clipboard.

Code Select Expand


Local hGraphic As Dword

Clipboard Reset
Control Handle   hWndGraphicDlg,IDC_FRMMAIN_CUSTOMCONTROL1 To  hGraphic                   
Clipboard Set Bitmap hGraphic



[Patrice Terrier]

WM_PRINT (PrintWindow)

...

[Roy Chan]

I can not overcome the Unicode problem. So you can not input the Unicode character.  I will share the soure code to everyone 3 months later.

The qrcode encode library is developed by :
qrcodelib.dll  -   Kentaro Fukuchi <kentaro@fukuchi.org>





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