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| Acmlm's Board - I2 Archive - Programming - SetBitmapDimensionEx |
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HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 7065/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
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This function is supposed to set the dimensions of a bitmap... 2 problems. One, it wants ".01-mm units"... everything I've worked with so far uses pixels and I don't know of any functions to convert them to this obscure unit. Two, it doesn't work. I resize the bitmap but it's still the same size it was created at, even though it returns OK. (And who's the genuis who left the 's' off 'dimensons' and made it not set the last error code if something does go wrong?  )(edited by HyperHacker on 09-13-05 10:49 PM) |
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Cellar Dweller Flurry !!! Level: 27  Posts: 248/269 EXP: 107817 For next: 8342 Since: 03-15-04 From: Arkansas Since last post: 16 days Last activity: 34 min. |
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| I think that bitmaps can have dimensions in real world units independent of the size in pixels. This function, in effect, sets the conversion between pixels and .01mm units for the specified bitmap. | |||
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HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 7074/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
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| Yeah, but I'm working with pixels. How do I convert a pixel size to a .01-mm size? | |||
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sloat Level: 16 Posts: 80/85 EXP: 18044 For next: 2212 Since: 05-21-04 From: South Central Delaware Since last post: 19 days Last activity: 5 hours |
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| Actually that function doesn't actually change the dimensions of a GDI bitmap. I know it seems stupid, and it is, but that's GDI for you. If you read the second sentence, you'll see: "These dimensions can be used by applications; however, they are not used by the system." So really, the Get/SetBitmapDimension functions aren't very useful. And they also can't be used on a DIB. The only way to "resize" a memory bitmap is to create a new one with the dimensions you want, copy the bitmap over, and delete the old one. It's not as slow as you'd think, but it's the only way to do it. |
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HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 7076/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
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| Eh, I figured that's how I'd have to do it anyway. Do I need to re-assign it to the hDC and all that too? | |||
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sloat Level: 16 Posts: 81/85 EXP: 18044 For next: 2212 Since: 05-21-04 From: South Central Delaware Since last post: 19 days Last activity: 5 hours |
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| Yeah. Just make sure you delete the old bitmap after you select the new one to the DC. |
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