PHP WinBinder 2: Resource

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UniServer 5-Nano PHP WinBinder 2.

WinBinder Part 2 PHC-Win Resources

On the previous page I mentioned image duplication. We included individual images with our distribution package, however PHC-Win adds these to the final exe file.

Without making code changes, these image resources are not directly accessible by WinBinder, hence the reason for adding them to our distribution package.

This page describes code changes required to use images contained within the .exe file, thus eliminating the need for separately including them with the distribution package.

Embeder overview

The embeder creates an executable file where additional files may be added.

These files are added to an array named PHP. Array keys are md5 encoded. A resource file is accessible via its key.

Running this executable creates a unique constant named EMBEDED.

It’s worth looking at the mechanics of this process.

Setup Copy image red.bmp from folder C:\us_wb\my_app and save it to folder C:\us_wb\phc Create a new batch file named test.bat in folder C:\us_wb\phc with the content shown on the right.

test.bat <pre> embeder2.exe new test2 embeder2.exe add test2 red.bmp ./ embeder2.exe list test2 pause </pre>

Batch file First line runs the embeder program. It creates a new executable test2.exe Second line adds our image resource red.bmp Last line displays the content of test2.exe Run batch file Run the batch file test.bat result shown on the right.<br/>It clearly shows the array PHP and md5 key generated Note: The md5 is converted to uppercase before being saved to the array. File (resource) access<br />Access a resource using the following code format <pre> res:///PHP/'.strtoupper(md5('./red.exe')) </pre>

Result <pre> C:\us_wb\phc>embeder2.exe new test2 '.\test2.exe' created C:\us_wb\phc>embeder2.exe add test2 red.bmp ./ Updated 'res://.\test2.exe/PHP/0374ec857381230fa83049643ce3cdee' with 776 bytes C:\us_wb\phc>embeder2.exe list test2 Res list of '.\test2.exe': PHP 0374EC857381230FA83049643CE3CDEE RUN RT_ICON #1 #2 RT_GROUP_ICON #101 24 C:\us_wb\phc>pause Press any key to continue . . . </pre>

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Problem

Our application uses the following code to assign images :

<pre> wb_set_image(wb_get_control($mainwin, IDC_FRAMERED1),'red.bmp', NOCOLOR); wb_set_image(wb_get_control($mainwin, IDC_FRAMERED2), 'red.bmp', NOCOLOR); wb_set_image(wb_get_control($mainwin, IDC_FRAMEGREEN1),'green.bmp', NOCOLOR); wb_set_image(wb_get_control($mainwin, IDC_FRAMEGREEN2),'green.bmp', NOCOLOR); wb_set_image($mainwin, "uslogo.ico"); // Add logo </pre>

The above functions are expecting an image file path.

This code res:///PHP/'.strtoupper(md5('./red.exe')) returns an image resource, binary content of a file.

The two are incompatible hence WinBinder cannot use an image resource directly.

Solution

The solution is as follows:

• Write the image resource to a file on disk
• Allow WinBinder to assign this image file (using its path)
• Once assigned, it is no longer required, so delete the image file

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Code

The code is split into three sections.

• First section tests if code is running from the .exe using EMBEDED as a reference. If running from .exe, it gets the image resource as a file and saves it to disk with the original file name.
• Second section contains original lines that remain unchanged.
• Last section tests if code is running from the .exe and deletes the file from disk if true.

This method allows code to be tested with original images. After compiling, the .exe produced is moved to folder C:\us_wb\my_dis\final for testing.

If code is running from .exe (EMBEDED true) get resource as a file and save it to disk with same file name.	<pre> // Assign red image to frames if(defined('EMBEDED')){ // If main exe Get image save to disk file_put_contents('./red.bmp',file_get_contents('res:///PHP/'.strtoupper(md5('./red.bmp')))); } </pre>
These lines remain unchanged.	<pre> wb_set_image(wb_get_control($mainwin, IDC_FRAMERED1),'red.bmp', NOCOLOR); wb_set_image(wb_get_control($mainwin, IDC_FRAMERED2), 'red.bmp', NOCOLOR); </pre>
If running from .exe, image no longer required, so delete it.	<pre> if(defined('EMBEDED')){ // If main exe unlink('./red.bmp'); // Delete file } </pre>

With the exception of image name, each image requires identical code.

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Modifications

Edit file C:\us_wb\my_app\z_basic.phpw Replace these lines <pre> // Assign images to frames wb_set_image(wb_get_control($mainwin, IDC_FRAMERED1),'red.bmp', NOCOLOR); wb_set_image(wb_get_control($mainwin, IDC_FRAMEGREEN1),'green.bmp', NOCOLOR); wb_set_image(wb_get_control($mainwin, IDC_FRAMERED2), 'red.bmp', NOCOLOR); wb_set_image(wb_get_control($mainwin, IDC_FRAMEGREEN2),'green.bmp', NOCOLOR); </pre>

With <pre> // Assign red image to frames

if(defined('EMBEDED')){    // If main exe Get image save to disk
  file_put_contents('./red.bmp',file_get_contents('res:///PHP/'.strtoupper(md5('./red.bmp')))); 
}
 wb_set_image(wb_get_control($mainwin, IDC_FRAMERED1),'red.bmp', NOCOLOR); 
 wb_set_image(wb_get_control($mainwin, IDC_FRAMERED2), 'red.bmp', NOCOLOR); 
if(defined('EMBEDED')){    // If main exe
  unlink('./red.bmp');     // Delete file 
}

// Assign green image to frames

if(defined('EMBEDED')){    // If main exe Get image save to disk
  file_put_contents('./green.bmp',file_get_contents('res:///PHP/'.strtoupper(md5('./green.bmp')))); 
}
 wb_set_image(wb_get_control($mainwin, IDC_FRAMEGREEN1), 'green.bmp', NOCOLOR); 
 wb_set_image(wb_get_control($mainwin, IDC_FRAMEGREEN2), 'green.bmp', NOCOLOR); 
if(defined('EMBEDED')){    // If main exe
  unlink('./green.bmp');     // Delete file 
}

</pre>

Replace this line <pre>

 wb_set_image($mainwin, "uslogo.ico");  // Add logo 

</pre> With <pre> // Assign logo image to window

if(defined('EMBEDED')){    // If main exe Get image save to disk
  file_put_contents('./uslogo.ico',file_get_contents('res:///PHP/'.strtoupper(md5('./uslogo.ico')))); 
}
  wb_set_image($mainwin, "uslogo.ico");  // Add logo 
if(defined('EMBEDED')){    // If main exe
  unlink('./uslogo.ico');  // Delete file 
}

</pre>

Test

• Run z_basic.bat ensure your application runs
• Compile
• Copy z_basic.exe to folder C:\us_wb\my_dis\final
• Optional: delete image files. (Note: images will be deleted when z_basic.exe is run)
• Run z_basic.exe

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Summary

That completes this tutorial.

To save typing you can find a completed project ready for compiling in folder C:\us_wb\phc\us_example. Copy all files to folder C:\us_wb\my_app, compile and test as above.

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Conclusion

• Designing a Windows application using WinBinder is extremely easy.

• Compiling a project with PHC-Win really is a snap, and takes just a few mouse clicks.

• A slight negative for a small Windows application is that the distributed code size is relatively large. This is not a significant issue, with the convenience and ease of use of PHP far outweighs this.

• That said core elements of WinBinder are being actively worked on. Both Andrew (Frantik) and Alec Gorge “alecgorge” are pushing to reduce core size further; expect significant changes.

• The WinBinder project remains alive and vibrant. What I really like is that you can produce very powerful Windows applications using these tools. The project is well supported and you will find numerous code examples.

• If you get stuck with a problem, visit WinBinder’s friendly forum.

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