wxWidgets Discussion Forum

Hi,everyone! I'm currently developing an application that likes the ACDSee, it can zoom the picture,and drag the zoomed image easily.(the image is large ,e.g. 8000x4000, or bigger than this.) while, First, I try to use the SetUserScale() to zoom the image,it works well when I zoom the image,also it ...

对于特别大的图片进行缩放还不是一件很简单的事，最好进行局部缩放
还有，调用SetUserScale可以达到缩放的目的，不用自己来进行Scale。

thanks a lot! It works!

sorry，maybe I can make clear for you by the screenshot

hi,friend! I met a question as yours.My code is below: wxInitAllImageHandlers(); wxString str = wxFileSelector(); //Select a jpeg image from the disk wxImage image(str); image.SetOption(wxIMAGE_OPTION_QUALITY,10); int w =image.GetWidth(); int h = image.GetHeight(); wxMemoryInputStream jpegStream(im...

hi! Thanks for your reply very very quickly! :) While, I think I have not make clear to you,sorry. I want to decommpress a jpeg image by the API image.SetOption(wxIMAGE_OPTION_QUALITY,10); and then display the image which has decompressed on the screen. I think I have to use the wxInputStream to Cre...

hi,friend! I met a question as yours.My code is below: wxInitAllImageHandlers(); wxString str = wxFileSelector(); //Select a jpeg image from the disk wxImage image(str); image.SetOption(wxIMAGE_OPTION_QUALITY,10); int w =image.GetWidth(); int h = image.GetHeight(); wxMemoryInputStream jpegStream(ima...

I have resolved this
First,I draw a image,then I draw a rectangle
and next I draw a bitmap in the rectangle,this looks like the rectangle is float on the image

Hi! wxUsers I Create a wxScrolledWindow and then create a frame with the flag "wxFRAME_FLOAT_ON_PARENT" , set the parent is the ScrolledWindow. In the MainFrame, i use them , the problem is that ,when I click the Scrolledwindow the focus is always on the Float frame, it is crazy! why the frame alway...

I will create a window without a bar to deal it ,thanks Auria.

I want to create a frame which will display in my style ,
eg: Change the wxCAPTION to be a image ,the result like the follwing img,may i?
How to do it ?
thanks for anyone who can give me the big idea.

I got it!!

I should set the "Client center line" to be the "baseline".
it will work!

I want to create my Ctrl to achieve the picture viewer like the "pictur viewer" on the windows xp. when i zoom out the picture, I can't Scroll the scroollbar to the postion previous. eg. I got the Scrollbar's postion with the function GetViewStart, when I zoom out the picture 2 times, i Scroll the w...

Maybe there will be something can help youhttp://forums.wxwidgets.org/viewtopic.p ... highlight=

say goodbye to wxWidgets today!
however,I will come back some time.