YOU CAN CODE!

 

With The Case Of UCanCode.net  Release The Power OF  Visual C++ !   HomeProducts | PurchaseSupport | Downloads  
View in English
View in Japanese
View in
참고
View in Français
View in Italiano
View in 中文(繁體)
Download Evaluation
Pricing & Purchase?
E-XD++Visual C++/ MFC Products
Overview
Features Tour 
Electronic Form Solution
Visualization & HMI Solution
Power system HMI Solution
CAD Drawing and Printing Solution

Bar code labeling Solution
Workflow Solution

Coal industry HMI Solution
Instrumentation Gauge Solution

Report Printing Solution
Graphical modeling Solution
GIS mapping solution

Visio graphics solution
Industrial control SCADA &HMI Solution
BPM business process Solution

Industrial monitoring Solution
Flowchart and diagramming Solution
Organization Diagram Solution

Graphic editor Source Code
UML drawing editor Source Code
Map Diagramming Solution

Architectural Graphic Drawing Solution
Request Evaluation
Purchase
ActiveX COM Products
Overview
Download
Purchase
Technical Support
  General Q & A
Discussion Board
Contact Us

Links

Get Ready to Unleash the Power of UCanCode .NET


UCanCode Software focuses on general application software development. We provide complete solution for developers. No matter you want to develop a simple database workflow application, or an large flow/diagram based system, our product will provide a complete solution for you. Our product had been used by hundreds of top companies around the world!

"100% source code provided! Free you from not daring to use components because of unable to master the key technology of components!"


VC++ Example:  HRGN, SetWindowPos, SetWindowRgn, Create Region from bitmap file

 
 By Yuriy Zaporozhets

Very primitive function that creates region from *.bmp files. 

Introduction

This very simple function creates a region from a bitmap (.bmp) file. 8, 16, 24 and 32 bit color modes are supported.

The function takes two parameters:

  • hBmp - a handle to the bitmap image.
  • color - transparent color.
HRGN CreateRgnFromFile( HBITMAP hBmp, COLORREF color );

Using the function is very simple. For example, if you wish to set the window shape of your dialog, then in your OnInitDialog handler, do this:

BOOL CFileRgnDlg::OnInitDialog()
{
    CDialog::OnInitDialog();

    // load image
    HBITMAP hBmp = (HBITMAP)LoadImage( AfxGetInstanceHandle(), 
                     "Rgn.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE );
    // if fail - nothing to do
    if ( hBmp == NULL ) return TRUE;
    // create region, let the RED color be transparent

    HRGN hRgn = CreateRgnFromFile( hBmp, RGB(255,0,0) );

    // build memory dc for background
    CDC* dc = GetDC();
    m_dcBkGrnd = CreateCompatibleDC( dc->m_hDC );
    ReleaseDC( dc );
    // select background image
    SelectObject( m_dcBkGrnd, hBmp );
    // set window size the same as image size
    SetWindowPos( NULL, 0, 0, m_dwWidth, m_dwHeight, 
                           SWP_NOZORDER | SWP_NOMOVE );
    // assign region to window
    SetWindowRgn( hRgn, FALSE );

    return TRUE;
}

History

  • December 08 2001

    * cut & paste bug for 16-bit mode (white color as transparent did not work).

    * pixels in a last column has not been used.

    + Now you can use non-aligned (by width) images.

  • June 11 2001

    * ExtCreateRegion NT-problem (personal thanks to Martin for reporting about it).

     

 

Copyright ?1998-2024 UCanCode.Net Software , all rights reserved.
Other product and company names herein may be the trademarks of their respective owners.

Please direct your questions or comments to webmaster@ucancode.net