Databases
StackOverflow2013
Postsdbo
POglutBitmapString access violation
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POglutBitmapString access violation
    primarykey
    data
    text
    <p>(OS: Windows 7, Compiler: Visual Studio 2010 C++ compiler)</p> <p>I've got a correctly working OpenGL program that draws some spheres and models, applies some shaders etc.. etc..</p> <p>Now I thought it would be nice to add some text, so I added the following three lines to my draw method:</p> <pre><code>glColor3f(0.5f, 0.5f, 0.5f); glRasterPos2f(0, 0); glutBitmapString(GLUT_BITMAP_HELVETICA_12, (unsigned char*)"some text"); </code></pre> <p>Now somehow this all makes my program get stuck in an infinite "access violation" loop, which I can't seem to fix. I even commented all the other draw code out, to just output the text, and it still gives the access violation error, I'm at a loss here because there is nothing that seems to affect this. So does anybody have some pointers ;)) on how to fix this issue?</p> <p>I could post all my draw code, but I even tried an empty project, so I'm pretty sure it's not the rest of the code.</p> <p>Edit: I tried narrowing down the error even more, and it seems that glRasterPos2f is throwing the acces violation (weirdly enough). It's not between any glBegin and glEnd calls, and there is no OpenGL error.</p> <p><strong>Edit2:</strong> After some advice I tried the following code, I got rid of the access violation, but still no text is displayed</p> <pre><code>glColor3f(0.5f, 0.5f, 0.5f); glRasterPos2f(0.0f, 0.0f); std::string str("Hello World"); char* p = new char[strlen(str.c_str() + 1)]; strcpy(p, str.c_str()); glutBitmapString(GLUT_BITMAP_HELVETICA_12, (const unsigned char*)p); </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USRoy T.
    1. USRoy T.
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COI'm just guessing, but could it be, that in VC++ 2010 a string literal like "some text" if of type WCHAR*? If so, it would be incompatible to GLUT. That second code looks extremely weird, why that dynamcially allocated char *p? I'd just have used the STL std::string::c_str() function.
      singulars
      1. POglutBitmapString access violation
      1. USdatenwolf
    2. COI also tried it with using the c_str() directly, but no effect. It's a really weird problem if you ask me, and probably has something todo with the VC++ 2010 compiler indeed, I'm going to try G++ on a Linux machine today to see if that helps.
      singulars
      1. POglutBitmapString access violation
      1. USRoy T.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload