wxWidgets Discussion Forum

Hi All, In my Onpaint event I am having a function called Draw(dc(pointer to dc)) in which i am playing a metafile.I have set manually "setvirtualsize" for scrollbars.I select a part of this metafile and zoomed it to show in the window.(derived from wxscrolledwindow) Problem faced: When I ...

Hi,
My printing function is working fine.But it is printing so small in a A4 sheet paper.It is not occupying the whole sheet.What could be the problem?

I understood my problem.The rectangle gets displayed because I am getting the image from the screen.Thanks for your replies.Can you please help me how to get the region I selected using selection rectangle?.Will GetClippingRegion() function do that?

Thanks for our replies.I found some sample from this forum and managed to do it.I have another problem.After selecting the image and displaying in the same DC I get the drag rectangle displayed.I don't need the rectangle to get displayed.How can I do it?.Here is my code.. //on mouse button up void M...

I don't how to get the region(part of the image) selected by the drag rectangle.If I am able to get the data then I can zoom it.Is there any function to get the data from the selected rectangle.

Hi all,
I selected a region of a image using a drag rectangle.I want to zoom that region of the image only and show it in the full window.Can somebody please elaborate the steps to be done for this implementation. Please help me..


Thanks,
Mohan

Thanks Grrr I found the error I was not calling refresh() in leftdown mouse event.

Thanks Grrr It solved me the problem but the old select rectangle is still displayed if I select other position using mouse.

I tried to draw a rubber band rectangle.It is showing some strange results.It is not deleting the old rectangle.The code is as follows, wxPoint startpoint; wxPoint endpoint; wxPoint savepoint; int width,height; bool leftclicked=false; bool selected=false; void MyCanvas::OnLeftDown(wxMouseEvent& ...

Thanks for your replies.I want to draw a rectangle based on the user mouse movements on the image.I want the functionality as same as "select" tool in Microsoft Paint.Can you please tell me how it can be implemented.Please post some sample code.

Hi All,
I wanted to select a part of the whole image and zoom it.Can you please suggest me ideas on how it could be implemented.

Thanks in advance,
Mohan.

Hi all, I want to know how to use the wxMetafileDC and wxMetafile.I need a sample metafile to be played on the frame.I used metafile and metafileDC in Onpaint event as, wxPaintDC dc(this); wxMetafileDC *metaDC=new wxMetafileDC("C:\\GLOBE.wmf"); wxMetafile *metafile=metaDC->Close(); metafil...

Thanks for your reply.

That is not working.Please tell me how could I pass the (pi.hmf)handle.I am using wxdevc++ ide.It is showing as linker error undefined reference

Hi all, I am using wxMetafile for displaying.I have also attached the code.I am not able to display the diagram.I am seeing a blank window.Please tell me what is wrong in the code. Details of code: I am using a filter(microsoft filter) for converting a dxf file into metafile.In onpaint i am playing ...

Thanks for your help megabyte.
Bye