c - Reading bytes from bmp file -

-

मैं सी का उपयोग कर एक बीएमपी फ़ाइल से बाइट कैसे पढ़ूं?

यह सिर्फ एक बाइनरी फाइल लोड करने के लिए एक सामान्य प्रयोजन के कंकाल है, और पहले बाइट को एक सूचक वापस लौटाता है। यह फोल्ड (fopen ()) के साथ फोल्ड () के बाद फोिल () है, लेकिन यह एक ... थोड़ा और वर्बोस है कोई त्रुटि-हैंडलिंग नहीं है, हालांकि त्रुटियों के लिए जांच की जाती है और मुझे विश्वास है कि यह कोड सही होगा। यह कोड खाली फ़ाइलों को अस्वीकार कर देगा (जो, परिभाषा के द्वारा, फिर भी लोड करने के लिए कोई डेटा नहीं है)। 

  #include & lt; stdio.h & gt; # शामिल करें & lt; stdlib.h & gt; स्थिर इंट फाइल_आइज़ (FILE * में, आकार_टी * आकार) {if (fseek (in, 0, SEEK_END) == 0) {long len = ftell (in); अगर (लेन & gt; 0) {यदि (एफईसीईएक्स (में, 0, SEEK_SET) == 0) {* size = (size_t) लेन; वापसी 1; }} 0 वापसी 0; } स्थिर शून्य * load_binary (const char * फाइलनाम, आकार_टी * आकार) {FILE * in; शून्य * डेटा = शून्य; Size_t लेन; अगर ((= (फ़ाइल में), = () में) (यदि = (फ़ाइल =) (=,)) = (= ()) (यदि ((डेटा = malloc (len)) = =) (अगर (fread (fread (filename, "rb") =) डेटा, 1, लेन, में) == लेन) * size = len; अन्य {नि: शुल्क (डेटा); डेटा = नल; }}} Fclose (इन); } वापसी डेटा; } Int main (int argc, char * argv []) {int i; के लिए (i = 1; argv [i]! = नल; i + +) {शून्य * छवि; Size_t आकार; यदि ((image = load_binary (argv [i], & amp; आकार)) = = NULL {printf (''% s 'से भरा बीएमपी, आकार% u बाइट्स \ n ", argv [i], (अहस्ताक्षरित int ) आकार); नि: शुल्क (छवि);

आप आसानी से बीएमपी हेडर को पार्स करने के लिए कोड को जोड़ सकते हैं, अन्य उत्तरों में दिए गए लिंक का उपयोग करके।


Comments

Post a Comment

Popular posts from this blog

c++ - Linux and clipboard -

-
After selecting the copies of the buffer in Linux, after the text, we can click and paste the button between the mouse. I think there is a special buffer for this, I want to use it. Programming Language: C ++ Your Library: Qt Thanks. There is just one more correct answer than Paul Dixon, which answers your needs: / P > QClipboard * clipboard = QApplication :: clipboard (); CastString Selected Text = Clipboard-> Text (QClipboard :: Selection);
Read more

delphi - Mouseover hint for TChart series value -

-
I am using a TChart in Delphi 7, and I want to display charts sometime. I am using the following code to set the chain value to a database query: chart1.FreeAllSeries; Chart1.SeriesList.Clear; Chart1.AddSeries (TBarSeries.Create (self)); TBarSeries (chart1.Series [0]) BarStyle :. = BsRectGradient; Stop starting with Query 1; Executed; While EOF does not start chart1.Series [0]. Add (field 'flags' ('sum_actual_days'), Field Astrstring ('contract_no')); the upcoming; End; End; Each time (value) is now showing both the label below the bar and in a yellow rectangle above the bar. Rather than repeating the amount of label twice, I have some additional information from the query that I would like to show above the bar rather than the label (or, preferably, as a mouseover signal). Can it be done with TChart? And how ...? This can be done with a TChart using the onMouseMeave event of the chart. Something like this should start with you: Process TForm...
Read more

How to Create Master-Details view using Asp.Net MVC framework -

-
I am evaluating the Asp.Net MVC framework for my enterprise application for the past few weeks. The one thing I'm trying to achieve is the master-detail view. As it is very clear that there is no vivestate and there is no postback. For example, now I am using the product, customer, order and order details table from the Northwind database and I am using the especial MVC. I want to make master-detail view. Basically I do not have to have separate ideas (pages of other words) for order and order details. View order and order details should be included. How should I design my controller and see how to get this functionality. Thanks & amp; Regards, Burhanuddin Ghee You want to write a domain-specific view-model class Adds an order and details from its order (I'm assuming that order-> order details are 1-> n relation, not familiar with Northwind): public class command view model (Public order order); Set;} public inenemable & lt; Order deletate & gt; ...
Read more