2.3 Relaxatie-oscillator

ool CMyDlg::FileODlg(void)
{
bool os; // os records succes of GetOpenFileName
char tmp[maxP]; // temporary store for Path+Filename+Extension
OPENFILENAME ofn; // structure to FILE ofn
}
ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.lpstrFilter = “Standard MIDI files\0*.MID\0ALL\0*.*\0”;
ofn.lpstrFile = tmp;
ofn.lpstrFile[0] = ‘\0’; // Set lpstrFile[0] to ‘\0’ so that GetOpenFileName
// does not use contents of szFile to initialize
ofn.nMaxFile = maxP; // Max. length of filename. Must be declared!!
ofn.Flags = OFN_EXPLORER | OFN_FILEMUSTEXIST | OFN_HIDEREADONLY;
os=(GetOpenFileName(&ofn)==TRUE);
if (os)
{
FONm=tmp; // see declaration for explanation of these members
FOLp=tmp+ofn.nFileOffset;
FOFn=FOLp.Left(ofn.nFileExtension-ofn.nFileOffset-1);
FOEx=tmp+ofn.nFileExtension;
}
return (os); // check if file was selected. If selected, nResult=True
bool CMyDlg::FileSDlg(void) // char array for path + file name
{
bool os; // os records succes of GetOpenFileName
char tmp[maxP]; // temporary store for Filename
OPENFILENAME ofn; // structure to FILE ofn
ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.lpstrFilter = “Text Files (*.txt)\0*.txt\0ALL\0*.*\0”;
ofn.lpstrFile = tmp;
ofn.lpstrFile[0] = ‘\0’; // Set lpstrFile[0] to ‘\0’ so that GetOpenFileName
// does not use the contents of szFile to initialize
ofn.nMaxFile = maxP;
ofn.Flags = OFN_EXPLORER | OFN_PATHMUSTEXIST | OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT;
os=(GetSaveFileName(&ofn)==TRUE);
if (os)
{
FSNm=tmp; // see declaration for explanation of these members
FSLp=tmp+ofn.nFileOffset;
FSFn=FSLp.Left(ofn.nFileExtension-ofn.nFileOffset-1);
FSEx=tmp+ofn.nFileExtension;
FSPt=FSNm.Left(ofn.nFileOffset);
}
return (os); // check if file was selected. If selected, nResult=True
}
bool CMyDlg::Convert(void)
{
SaveMsg(“Analyzing File...”+FOLp);
FILE *fp,*o;
CString bsenm; // basename for output files
CString outnm; // name for output files
CString ascnum; // name for ascii extension
int c; // readed byte always stored in c
int i; // counter to order the readed bytes
int head; // kind tells function whether header or track
int track; // every time a new track comes, track ++
char what2do; // what2do tells function what to do with the byte
char mfmt; // file tells type of midi file (0,1 or 2)
int mres; // resolution of the delta-time, in ticks/quarter note
unsigned long chunkl; // length of chunk (4 bytes max.)
char dtm; // flag for status of reading. TRUE: read delta time
unsigned long vrl; // result of variable length calculation
unsigned long sdtm; // savereg. for temporarily storing delta time
unsigned long cumdtm; // cumulative deltatime
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